Finding the Fourth Proportional to 5,755,737.11, 7,942,942.56 and 3,177,439.07
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Solution
The fourth proportional to 5,755,737.11, 7,942,942.56 and 3,177,439.07 is: 4,384,879.91
Step by Step Solution
- Step 1: Write the proportion equation
5,755,737.11 : 7,942,942.56 = 3,177,439.07 : x - Step 2: Convert to fraction form
5,755,737.11/7,942,942.56 = 3,177,439.07/x - Step 3: Cross multiply
5,755,737.11x = 7,942,942.56 × 3,177,439.07 - Step 4: Simplify right side
5,755,737.11x = 25,238,215,981,195.11 - Step 5: Solve for x
x = 25,238,215,981,195.11/5,755,737.11 - Step 6: Final answer
x = 4,384,879.91
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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.