Finding the Fourth Proportional to 8,231,425.80, 12,347,138.70 and 2,553,390.60
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Solution
The fourth proportional to 8,231,425.80, 12,347,138.70 and 2,553,390.60 is: 3,830,085.90
Step by Step Solution
- Step 1: Write the proportion equation
8,231,425.80 : 12,347,138.70 = 2,553,390.60 : x - Step 2: Convert to fraction form
8,231,425.80/12,347,138.70 = 2,553,390.60/x - Step 3: Cross multiply
8,231,425.80x = 12,347,138.70 × 2,553,390.60 - Step 4: Simplify right side
8,231,425.80x = 31,527,067,893,476.22 - Step 5: Solve for x
x = 31,527,067,893,476.22/8,231,425.80 - Step 6: Final answer
x = 3,830,085.90
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.