Finding the Fourth Proportional to 157,418,515.49, 217,307,219.20 and 101,691,113.93
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Solution
The fourth proportional to 157,418,515.49, 217,307,219.20 and 101,691,113.93 is: 140,378,742.09
Step by Step Solution
- Step 1: Write the proportion equation
157,418,515.49 : 217,307,219.20 = 101,691,113.93 : x - Step 2: Convert to fraction form
157,418,515.49/217,307,219.20 = 101,691,113.93/x - Step 3: Cross multiply
157,418,515.49x = 217,307,219.20 × 101,691,113.93 - Step 4: Simplify right side
157,418,515.49x = 22,098,213,185,478,684 - Step 5: Solve for x
x = 22,098,213,185,478,684/157,418,515.49 - Step 6: Final answer
x = 140,378,742.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.