Answer :
Use proportions.
1 lightyear = 9.4605284 trillion kilometers
x light years ≈ 33.31 trillion kilometers
33.31/9.46 = x/1
3.50 ≈ x
1 lightyear = 9.4605284 trillion kilometers
x light years ≈ 33.31 trillion kilometers
33.31/9.46 = x/1
3.50 ≈ x