4 imperial gallons in US customary cups

Conversion formula
How to convert 4 imperial gallons to US customary cups?

We know (by definition) that: $1\mathrm{imperialgallon}\approx 19.2151988080777\mathrm{uscup}$

We can set up a proportion to solve for the number of US customary cups.

Now, we cross multiply to solve for our unknown $x$:

Conclusion: 4 ⁢ imperialgallon ≈ 76.8607952323108 ⁢ uscup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary cup is equal to 0.0130105341348279 times 4 imperial gallons.

It can also be expressed as: 4 imperial gallons is equal to $\frac{1}{\mathrm{0.0130105341348279}}$ US customary cups.

Approximation

An approximate numerical result would be: four imperial gallons is about seventy-six point eight five US customary cups, or alternatively, a US customary cup is about zero point zero one times four imperial gallons.