Finding the Fourth Proportional to 9,680,087.20, 14,520,130.80 and 8,168,432.80
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Solution
The fourth proportional to 9,680,087.20, 14,520,130.80 and 8,168,432.80 is: 12,252,649.20
Step by Step Solution
- Step 1: Write the proportion equation
9,680,087.20 : 14,520,130.80 = 8,168,432.80 : x - Step 2: Convert to fraction form
9,680,087.20/14,520,130.80 = 8,168,432.80/x - Step 3: Cross multiply
9,680,087.20x = 14,520,130.80 × 8,168,432.80 - Step 4: Simplify right side
9,680,087.20x = 118,606,712,687,010.25 - Step 5: Solve for x
x = 118,606,712,687,010.25/9,680,087.20 - Step 6: Final answer
x = 12,252,649.20
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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.