Finding the Fourth Proportional to 15,707,315.80, 21,626,755.14 and 13,347,536.12
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Solution
The fourth proportional to 15,707,315.80, 21,626,755.14 and 13,347,536.12 is: 18,377,671.85
Step by Step Solution
- Step 1: Write the proportion equation
15,707,315.80 : 21,626,755.14 = 13,347,536.12 : x - Step 2: Convert to fraction form
15,707,315.80/21,626,755.14 = 13,347,536.12/x - Step 3: Cross multiply
15,707,315.80x = 21,626,755.14 × 13,347,536.12 - Step 4: Simplify right side
15,707,315.80x = 288,663,895,389,545.62 - Step 5: Solve for x
x = 288,663,895,389,545.62/15,707,315.80 - Step 6: Final answer
x = 18,377,671.85
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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.