Finding the Fourth Proportional to 135,418,691.30, 186,934,997.32 and 91,425,278.14
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Solution
The fourth proportional to 135,418,691.30, 186,934,997.32 and 91,425,278.14 is: 126,205,503.54
Step by Step Solution
- Step 1: Write the proportion equation
135,418,691.30 : 186,934,997.32 = 91,425,278.14 : x - Step 2: Convert to fraction form
135,418,691.30/186,934,997.32 = 91,425,278.14/x - Step 3: Cross multiply
135,418,691.30x = 186,934,997.32 × 91,425,278.14 - Step 4: Simplify right side
135,418,691.30x = 17,090,584,123,899,980 - Step 5: Solve for x
x = 17,090,584,123,899,980/135,418,691.30 - Step 6: Final answer
x = 126,205,503.54
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.