Yahoo Finance

In 1987, Forbes published its first billionaires list, featuring 140 individuals whose combined wealth totaled $295 billion. At the time, the richest person in the world was Japan’s Yoshiaki Tsutsumi, a real estate tycoon worth $20 billion. Today, the world’s richest person, Elon Musk, is worth $419.4 billion, roughly 21 times as much as Tsutsumi at his peak and more than two million times as much as the median net worth of an American household, according to exclusive data from global wealth intelligence firm Altrata.