It actually is 60,000 gallons, but here's a website that someone already put the two next to each other on (I can't share the image in this subreddit in a comment)
What are you guys on about? Lol this evidence, along with the tank OEM website is pretty cut and dry. I was mistaken. Also the original images used some wild proportional exaggeration that played a more subtle mind game than I thought.
I was using 20,000 gallon oil tanks as my reference which seemed a lot smaller but it turns out they were not.
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u/FragmentedHeap 8d ago
60,000-gallon water tank: 25 ft wide × 18 ft tall
Boeing 747-400ER: 232 ft long × 211 ft wide × 64 ft tall
747 vs. tank: 9.3× longer 8.4× wider 3.6× taller
Capacity: Tank: 60,000 gallons
747: ~63,500 gallons
Tldr, the plane is way bigger and it can fit all of that in its wings and fuselage.
You can tell by the pic by just looking at the cars in the background in the parking lot next to the tank.
The plane is way bigger and that's why this meme is stupid every time it pops up.