Finding the Fourth Proportional to 115,756,257.43, 159,737,768.90 and 68,715,341.65
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Solution
The fourth proportional to 115,756,257.43, 159,737,768.90 and 68,715,341.65 is: 94,823,689.09
Step by Step Solution
- Step 1: Write the proportion equation
115,756,257.43 : 159,737,768.90 = 68,715,341.65 : x - Step 2: Convert to fraction form
115,756,257.43/159,737,768.90 = 68,715,341.65/x - Step 3: Cross multiply
115,756,257.43x = 159,737,768.90 × 68,715,341.65 - Step 4: Simplify right side
115,756,257.43x = 10,976,435,363,745,344 - Step 5: Solve for x
x = 10,976,435,363,745,344/115,756,257.43 - Step 6: Final answer
x = 94,823,689.09
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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.