Finding the Fourth Proportional to 90,528,628,441.96, 124,024,823,334.65 and 87,135,546,580.84
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Solution
The fourth proportional to 90,528,628,441.96, 124,024,823,334.65 and 87,135,546,580.84 is: 119,376,278,607.66
Step by Step Solution
- Step 1: Write the proportion equation
90,528,628,441.96 : 124,024,823,334.65 = 87,135,546,580.84 : x - Step 2: Convert to fraction form
90,528,628,441.96/124,024,823,334.65 = 87,135,546,580.84/x - Step 3: Cross multiply
90,528,628,441.96x = 124,024,823,334.65 × 87,135,546,580.84 - Step 4: Simplify right side
90,528,628,441.96x = 10,806,970,770,856,846,819,328 - Step 5: Solve for x
x = 10,806,970,770,856,846,819,328/90,528,628,441.96 - Step 6: Final answer
x = 119,376,278,607.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.