Finding the Fourth Proportional to 83,657,708.10, 125,486,562.15 and 77,918,145.30
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Solution
The fourth proportional to 83,657,708.10, 125,486,562.15 and 77,918,145.30 is: 116,877,217.95
Step by Step Solution
- Step 1: Write the proportion equation
83,657,708.10 : 125,486,562.15 = 77,918,145.30 : x - Step 2: Convert to fraction form
83,657,708.10/125,486,562.15 = 77,918,145.30/x - Step 3: Cross multiply
83,657,708.10x = 125,486,562.15 × 77,918,145.30 - Step 4: Simplify right side
83,657,708.10x = 9,777,680,182,801,180 - Step 5: Solve for x
x = 9,777,680,182,801,180/83,657,708.10 - Step 6: Final answer
x = 116,877,217.95
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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.