Finding the Fourth Proportional to 71,290,517.10, 107,164,098.45 and 66,235,922.70
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Solution
The fourth proportional to 71,290,517.10, 107,164,098.45 and 66,235,922.70 is: 99,566,018.45
Step by Step Solution
- Step 1: Write the proportion equation
71,290,517.10 : 107,164,098.45 = 66,235,922.70 : x - Step 2: Convert to fraction form
71,290,517.10/107,164,098.45 = 66,235,922.70/x - Step 3: Cross multiply
71,290,517.10x = 107,164,098.45 × 66,235,922.70 - Step 4: Simplify right side
71,290,517.10x = 7,098,112,941,149,390 - Step 5: Solve for x
x = 7,098,112,941,149,390/71,290,517.10 - Step 6: Final answer
x = 99,566,018.45
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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.