Finding the Fourth Proportional to 88,678,142.07, 122,433,418.67 and 79,369,592.10
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Solution
The fourth proportional to 88,678,142.07, 122,433,418.67 and 79,369,592.10 is: 109,581,575.26
Step by Step Solution
- Step 1: Write the proportion equation
88,678,142.07 : 122,433,418.67 = 79,369,592.10 : x - Step 2: Convert to fraction form
88,678,142.07/122,433,418.67 = 79,369,592.10/x - Step 3: Cross multiply
88,678,142.07x = 122,433,418.67 × 79,369,592.10 - Step 4: Simplify right side
88,678,142.07x = 9,717,490,499,246,424 - Step 5: Solve for x
x = 9,717,490,499,246,424/88,678,142.07 - Step 6: Final answer
x = 109,581,575.26
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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.