Making Lightning Bolt & Fireball equal

(This is a silly and mostly pointless analysis, that's all...)

So Fireball and Lightning Bolt deal the same damage, and are the same level of spell. Where they differ, besides the damage types, is their respective ranges.

Lightning Bolt is a line, 100 feet long and 5 feet wide.

Fireball is an AoE with a radius of 20 feet.

If you're playing on a grid, and you sorta "lock" your spells to align with them, then Lightning Bolt affects 20 squares, whereas Fireball affects 52 squares (best I could figure). So to make them the same, you'd need to bump up Lightning Bolt to affect 52 squares, instead of its meh 20. How do you do this?

Make Lightning Bolt be 10 feet wide and 130 feet long! Then they'll affect the same amount of squares! Or alternatively, keep it 5 feet wide, but make it 260 feet long! Either way xD

Should you do that? Eh, probably not. But maybe if you did, then more people would take Lightning Bolt instead of Fireball?

Edit** Just to reiterate, this is just a silly analysis post. I don't actually think Lightning Bolt is weaker than Fireball or that it needs a "buff" or anything. Nor do I actually think anyone should homebrew Lightning Bolt in their campaigns to follow this post. Don't do that. The spell is just fine how it is