4. Bill Gates: $133 billion
Bill Gates is a name that everyone knows. You probably did too. Bill Gates is the fourth richest person on the planet with a $133 billion net worth. He founded Microsoft and dropped out of Harvard. Microsoft, the world’s largest software company, is not only responsible for Windows but also Microsoft Press which publishes its books. Bill Gates’ charity work is also well-known. In 2000, he and his former wife founded the Bill & Melinda Gates Foundation to support health, education and social issues.
