Finding the Fourth Proportional to 99,146,294.62, 136,779,440.96 and 61,911,931.56
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Solution
The fourth proportional to 99,146,294.62, 136,779,440.96 and 61,911,931.56 is: 85,411,960.38
Step by Step Solution
- Step 1: Write the proportion equation
99,146,294.62 : 136,779,440.96 = 61,911,931.56 : x - Step 2: Convert to fraction form
99,146,294.62/136,779,440.96 = 61,911,931.56/x - Step 3: Cross multiply
99,146,294.62x = 136,779,440.96 × 61,911,931.56 - Step 4: Simplify right side
99,146,294.62x = 8,468,279,387,530,582 - Step 5: Solve for x
x = 8,468,279,387,530,582/99,146,294.62 - Step 6: Final answer
x = 85,411,960.38
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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.