Finding the Fourth Proportional to 254,177,470.38, 381,092,148.24 and 129,438,640.08
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Solution
The fourth proportional to 254,177,470.38, 381,092,148.24 and 129,438,640.08 is: 194,069,322.27
Step by Step Solution
- Step 1: Write the proportion equation
254,177,470.38 : 381,092,148.24 = 129,438,640.08 : x - Step 2: Convert to fraction form
254,177,470.38/381,092,148.24 = 129,438,640.08/x - Step 3: Cross multiply
254,177,470.38x = 381,092,148.24 × 129,438,640.08 - Step 4: Simplify right side
254,177,470.38x = 49,328,049,413,351,368 - Step 5: Solve for x
x = 49,328,049,413,351,368/254,177,470.38 - Step 6: Final answer
x = 194,069,322.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.