Finding the Fourth Proportional to 15,517,414.18, 21,414,695.86 and 8,641,896.24
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Solution
The fourth proportional to 15,517,414.18, 21,414,695.86 and 8,641,896.24 is: 11,926,186.77
Step by Step Solution
- Step 1: Write the proportion equation
15,517,414.18 : 21,414,695.86 = 8,641,896.24 : x - Step 2: Convert to fraction form
15,517,414.18/21,414,695.86 = 8,641,896.24/x - Step 3: Cross multiply
15,517,414.18x = 21,414,695.86 × 8,641,896.24 - Step 4: Simplify right side
15,517,414.18x = 185,063,579,633,277.56 - Step 5: Solve for x
x = 185,063,579,633,277.56/15,517,414.18 - Step 6: Final answer
x = 11,926,186.77
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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.