Google cofounders Larry Page and Sergey Brin lost almost $2 billion each after Alphabet reported lower than expected revenue. Here's how they built a combined $127 billion fortune and how they spend it, from trapeze lessons to a 600-foot 'air yacht.'

· Google cofounders Larry Page and Sergey Brin each lost nearly $2 billion from their net worths after the search engine's parent company reported lower than expected fourth-quarter revenue on Monday.
· Brin and Page announced that they were stepping down from their roles at Alphabet in December.
· With a reported net worth...