Amazon chief Jeff Bezos is now the world's richest person, having snatched the top spot from Microsoft founder Bill Gates who slips to second place, according to Forbes magazine's annual billionaires list published Tuesday (March 6).&nbsp;US President Donald Trump's ranking on the list fell to 766th place from 544th in the last edition, his wealth now being estimated at US$3.1 billion (S$4 billion), US$400 million less than a year ago.

Thanks to a 59-per-cent rise in Amazon shares over the past 12 months, Bezos almost doubled his fortune, taking it to US$120 billion, way ahead of Gates's US$90 billion - the biggest gap ever between the number one and two spots, Forbes said.

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Click on the photos below to see who are the 20 richest people in the world.

Billionaires/Millionaires

#1: Jeff Bezos, Amazon chief (United States). Net worth: US$112 billion.

#2: Bill Gates, Microsoft founder (United States). Net worth: US$90 billion.

#3: Warren Buffett, investor and owner of Berkshire Hathaway (United States). Net worth: US$84 billion.

#4: Bernard Arnault, LVMH group (France). Net worth: US$72 billion.

#5: Mark Zuckerburg, Facebook chief (United States). Net worth: US$71 billion.

#6: Amancio Ortega, owner of Zara (Spain). Net worth: US$70 billion.

#7: Carlos Slim Helu, owner of two telcos (Mexico). Net worth: US$67.1 billion.

#8: Charles Koch, Koch Industries (United States). Net worth: US$60 billion.

#8: David Koch, Koch Industries (United States). Net worth: US$60 billion.

#10: Larry Ellison, Oracle co-founder (United States). Net worth: US$58.5 billion.

#11: Michael Bloomberg, founder of Bloomberg LP (United States). Net worth: US$50 billion.

#12: Larry Page, co-founder of Google (United States). Net worth: US$48.8 billion.

#13: Sergey Brin, co-founder of Google (United States). Net worth: US$47.5 billion.

#14: Jim Walton, Walmart (United States). Net worth: US$46.4 billion.

#15: S. Robson Walton, Walmart (United States). Net worth: US$46.2 billion.

#16: Alice Walton, Walmart (United States). Net worth: US$46 billion.

#17: Ma Huateng, Tencent founder (China). Net worth: US$45.3 billion.

#18: Francoise Bettencourt Meyers. owner of L'Oreal (France). Net worth: US$42.2 billion.

#19: Mukesh Ambani, owner of Reliance Industries (India). Net worth: US$40.1 billion.

#20: Jack Ma, Alibaba chief (China). Net worth: US$39 billion.

Reuters

Bloomberg

Amazon chief Jeff Bezos is now the world's richest person, having snatched the top spot from Microsoft founder Bill Gates who slips to second place, according to Forbes magazine's annual billionaires list published Tuesday (March 6). US President Donald Trump's ranking on the list fell to 766th place from 544th in the last edition, his wealth now being estimated at...

20 richest people in the world, according to Forbes 2018 billionaires list