Finding the Fourth Proportional to 8,128,921.35, 12,193,382.18 and 2,737,120.41
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Solution
The fourth proportional to 8,128,921.35, 12,193,382.18 and 2,737,120.41 is: 4,105,680.67
Step by Step Solution
- Step 1: Write the proportion equation
8,128,921.35 : 12,193,382.18 = 2,737,120.41 : x - Step 2: Convert to fraction form
8,128,921.35/12,193,382.18 = 2,737,120.41/x - Step 3: Cross multiply
8,128,921.35x = 12,193,382.18 × 2,737,120.41 - Step 4: Simplify right side
8,128,921.35x = 33,374,755,238,651.09 - Step 5: Solve for x
x = 33,374,755,238,651.09/8,128,921.35 - Step 6: Final answer
x = 4,105,680.67
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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.