Finding the Fourth Proportional to 71,082,369.42, 106,627,542.57 and 19,960,402.38
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Solution
The fourth proportional to 71,082,369.42, 106,627,542.57 and 19,960,402.38 is: 29,941,723.55
Step by Step Solution
- Step 1: Write the proportion equation
71,082,369.42 : 106,627,542.57 = 19,960,402.38 : x - Step 2: Convert to fraction form
71,082,369.42/106,627,542.57 = 19,960,402.38/x - Step 3: Cross multiply
71,082,369.42x = 106,627,542.57 × 19,960,402.38 - Step 4: Simplify right side
71,082,369.42x = 2,128,328,654,487,779 - Step 5: Solve for x
x = 2,128,328,654,487,779/71,082,369.42 - Step 6: Final answer
x = 29,941,723.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.