You've got 110 kilograms of carrots but someone only wants to buy that in units of carats, to change the units multiply by 5000. Now you have 550000 carats.
In 270 kilograms of rye there are 1350000 carats, to achieve this take 270 and just multiply by 5000.
You have 620 kilograms of wheat but you need to know how many carats that is. To get the answer multiply by 5000 which gives you 3100000 carats.