Finding the Fourth Proportional to 10,981,950.70, 16,472,926.05 and 8,147,598.70
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Solution
The fourth proportional to 10,981,950.70, 16,472,926.05 and 8,147,598.70 is: 12,221,398.05
Step by Step Solution
- Step 1: Write the proportion equation
10,981,950.70 : 16,472,926.05 = 8,147,598.70 : x - Step 2: Convert to fraction form
10,981,950.70/16,472,926.05 = 8,147,598.70/x - Step 3: Cross multiply
10,981,950.70x = 16,472,926.05 × 8,147,598.70 - Step 4: Simplify right side
10,981,950.70x = 134,214,790,870,176.14 - Step 5: Solve for x
x = 134,214,790,870,176.14/10,981,950.70 - Step 6: Final answer
x = 12,221,398.05
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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.