Finding the Fourth Proportional to 15,375,425.76, 21,216,463.92 and 8,498,797.92
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Solution
The fourth proportional to 15,375,425.76, 21,216,463.92 and 8,498,797.92 is: 11,727,443.67
Step by Step Solution
- Step 1: Write the proportion equation
15,375,425.76 : 21,216,463.92 = 8,498,797.92 : x - Step 2: Convert to fraction form
15,375,425.76/21,216,463.92 = 8,498,797.92/x - Step 3: Cross multiply
15,375,425.76x = 21,216,463.92 × 8,498,797.92 - Step 4: Simplify right side
15,375,425.76x = 180,314,439,433,051.06 - Step 5: Solve for x
x = 180,314,439,433,051.06/15,375,425.76 - Step 6: Final answer
x = 11,727,443.67
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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.