Finding the Fourth Proportional to 157,516,161.42, 217,372,342.14 and 86,951,812.62
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Solution
The fourth proportional to 157,516,161.42, 217,372,342.14 and 86,951,812.62 is: 119,993,523.15
Step by Step Solution
- Step 1: Write the proportion equation
157,516,161.42 : 217,372,342.14 = 86,951,812.62 : x - Step 2: Convert to fraction form
157,516,161.42/217,372,342.14 = 86,951,812.62/x - Step 3: Cross multiply
157,516,161.42x = 217,372,342.14 × 86,951,812.62 - Step 4: Simplify right side
157,516,161.42x = 18,900,919,162,527,808 - Step 5: Solve for x
x = 18,900,919,162,527,808/157,516,161.42 - Step 6: Final answer
x = 119,993,523.15
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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.