Finding the Fourth Proportional to 11,102,690.20, 15,306,644.65 and 7,790,484.17
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Solution
The fourth proportional to 11,102,690.20, 15,306,644.65 and 7,790,484.17 is: 10,740,295.43
Step by Step Solution
- Step 1: Write the proportion equation
11,102,690.20 : 15,306,644.65 = 7,790,484.17 : x - Step 2: Convert to fraction form
11,102,690.20/15,306,644.65 = 7,790,484.17/x - Step 3: Cross multiply
11,102,690.20x = 15,306,644.65 × 7,790,484.17 - Step 4: Simplify right side
11,102,690.20x = 119,246,172,767,023.25 - Step 5: Solve for x
x = 119,246,172,767,023.25/11,102,690.20 - Step 6: Final answer
x = 10,740,295.43
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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.