To put that into perspective, the World Bank estimates global GDP as around $100 trillion, which is peanuts compared to the prospective fine. Google would therefore have to find more money than exists on Earth to pay Moscow

I’m not sure that GDP is the best number to use here. That’s annual economic activity. I’d think that that wealth would be more-interesting.

According to this:

https://en.wikipedia.org/wiki/List_of_countries_by_total_wealth

…total global household wealth in 2022 – which I imagine is closer to what one wants – is about $454 trillion.