Finding the Fourth Proportional to 113,949,876.48, 157,193,495.28 and 74,786,217.72
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Solution
The fourth proportional to 113,949,876.48, 157,193,495.28 and 74,786,217.72 is: 103,167,351.52
Step by Step Solution
- Step 1: Write the proportion equation
113,949,876.48 : 157,193,495.28 = 74,786,217.72 : x - Step 2: Convert to fraction form
113,949,876.48/157,193,495.28 = 74,786,217.72/x - Step 3: Cross multiply
113,949,876.48x = 157,193,495.28 × 74,786,217.72 - Step 4: Simplify right side
113,949,876.48x = 11,755,906,962,177,872 - Step 5: Solve for x
x = 11,755,906,962,177,872/113,949,876.48 - Step 6: Final answer
x = 103,167,351.52
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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.