Suppose that there are 67 butterfly species for every 22,000 insect species and there are 15,000 to 22,000 species of butterflies worldwide. how many insect species are there

we know that

for 15000 species of butterflies
if there are 67 butterfly species for every -------------> 22,000 insect species
for 15000 species of butterflies-------------------------------> X
X=15000*22000/67---------> X=4925373.13 insect species

for 22000 species of butterflies
if there are 67 butterfly species for every -------------> 22,000 insect species
for 22000 species of butterflies-------------------------------> X
X=22000*22000/67---------> X=7223880.60 insect species

the answer is
there are 4925373 to 7223881  insect species