Finding the Fourth Proportional to 15,651,959.74, 21,581,265.99 and 14,491,158.46
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Solution
The fourth proportional to 15,651,959.74, 21,581,265.99 and 14,491,158.46 is: 19,980,727.68
Step by Step Solution
- Step 1: Write the proportion equation
15,651,959.74 : 21,581,265.99 = 14,491,158.46 : x - Step 2: Convert to fraction form
15,651,959.74/21,581,265.99 = 14,491,158.46/x - Step 3: Cross multiply
15,651,959.74x = 21,581,265.99 × 14,491,158.46 - Step 4: Simplify right side
15,651,959.74x = 312,737,545,228,498.75 - Step 5: Solve for x
x = 312,737,545,228,498.75/15,651,959.74 - Step 6: Final answer
x = 19,980,727.68
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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.