Finding the Fourth Proportional to 72,486,140.70, 108,729,211.05 and 29,375,996.70
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Solution
The fourth proportional to 72,486,140.70, 108,729,211.05 and 29,375,996.70 is: 44,063,995.05
Step by Step Solution
- Step 1: Write the proportion equation
72,486,140.70 : 108,729,211.05 = 29,375,996.70 : x - Step 2: Convert to fraction form
72,486,140.70/108,729,211.05 = 29,375,996.70/x - Step 3: Cross multiply
72,486,140.70x = 108,729,211.05 × 29,375,996.70 - Step 4: Simplify right side
72,486,140.70x = 3,194,028,944,998,403.50 - Step 5: Solve for x
x = 3,194,028,944,998,403.50/72,486,140.70 - Step 6: Final answer
x = 44,063,995.05
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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.