Finding the Fourth Proportional to 77,170,839.20, 106,491,847.20 and 45,810,228.68
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Solution
The fourth proportional to 77,170,839.20, 106,491,847.20 and 45,810,228.68 is: 63,215,793.99
Step by Step Solution
- Step 1: Write the proportion equation
77,170,839.20 : 106,491,847.20 = 45,810,228.68 : x - Step 2: Convert to fraction form
77,170,839.20/106,491,847.20 = 45,810,228.68/x - Step 3: Cross multiply
77,170,839.20x = 106,491,847.20 × 45,810,228.68 - Step 4: Simplify right side
77,170,839.20x = 4,878,415,872,787,618 - Step 5: Solve for x
x = 4,878,415,872,787,618/77,170,839.20 - Step 6: Final answer
x = 63,215,793.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.