Finding the Fourth Proportional to 3,960,147.99, 5,467,472.47 and 2,721,890.46
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Solution
The fourth proportional to 3,960,147.99, 5,467,472.47 and 2,721,890.46 is: 3,757,905.31
Step by Step Solution
- Step 1: Write the proportion equation
3,960,147.99 : 5,467,472.47 = 2,721,890.46 : x - Step 2: Convert to fraction form
3,960,147.99/5,467,472.47 = 2,721,890.46/x - Step 3: Cross multiply
3,960,147.99x = 5,467,472.47 × 2,721,890.46 - Step 4: Simplify right side
3,960,147.99x = 14,881,861,156,405.63 - Step 5: Solve for x
x = 14,881,861,156,405.63/3,960,147.99 - Step 6: Final answer
x = 3,757,905.31
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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.