Finding the Fourth Proportional to 21,304,663.92, 29,402,227.80 and 13,044,685.68
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Solution
The fourth proportional to 21,304,663.92, 29,402,227.80 and 13,044,685.68 is: 18,002,763.22
Step by Step Solution
- Step 1: Write the proportion equation
21,304,663.92 : 29,402,227.80 = 13,044,685.68 : x - Step 2: Convert to fraction form
21,304,663.92/29,402,227.80 = 13,044,685.68/x - Step 3: Cross multiply
21,304,663.92x = 29,402,227.80 × 13,044,685.68 - Step 4: Simplify right side
21,304,663.92x = 383,542,819,942,757.88 - Step 5: Solve for x
x = 383,542,819,942,757.88/21,304,663.92 - Step 6: Final answer
x = 18,002,763.22
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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.