Finding the Fourth Proportional to 15,651,958.24, 21,581,263.92 and 14,491,156.96
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Solution
The fourth proportional to 15,651,958.24, 21,581,263.92 and 14,491,156.96 is: 19,980,725.61
Step by Step Solution
- Step 1: Write the proportion equation
15,651,958.24 : 21,581,263.92 = 14,491,156.96 : x - Step 2: Convert to fraction form
15,651,958.24/21,581,263.92 = 14,491,156.96/x - Step 3: Cross multiply
15,651,958.24x = 21,581,263.92 × 14,491,156.96 - Step 4: Simplify right side
15,651,958.24x = 312,737,482,859,904.94 - Step 5: Solve for x
x = 312,737,482,859,904.94/15,651,958.24 - Step 6: Final answer
x = 19,980,725.61
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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.