The Bloomberg Billionaires Index monitors the richest people on earth. To see how much each billionaire is actually worth you need to go to the actual link and place the cursor on the relevant billionaire. Bill Gates still the richest man on earth, with a fortune of 79 billion dollars. Mark Zuckerberg (Facebook) overtook Jeff Bezos (Amazon) as the 4th richest man on earth with 50 billion dollars (Bezos 49 billion $). Second richest is the Spanish businessman and founder of the Inditex fashion group i.e. Zara etc Amancio Ortega Caona. 3rd richest the American businessman Warren Buffet with a fortune of 60 billion dollars.