Finding the Fourth Proportional to 19,486,874.70, 29,217,870.45 and 8,131,841.10
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Solution
The fourth proportional to 19,486,874.70, 29,217,870.45 and 8,131,841.10 is: 12,192,569.79
Step by Step Solution
- Step 1: Write the proportion equation
19,486,874.70 : 29,217,870.45 = 8,131,841.10 : x - Step 2: Convert to fraction form
19,486,874.70/29,217,870.45 = 8,131,841.10/x - Step 3: Cross multiply
19,486,874.70x = 29,217,870.45 × 8,131,841.10 - Step 4: Simplify right side
19,486,874.70x = 237,595,079,779,785.47 - Step 5: Solve for x
x = 237,595,079,779,785.47/19,486,874.70 - Step 6: Final answer
x = 12,192,569.79
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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.