Finding the Fourth Proportional to 118,747,429.20, 178,121,143.80 and 73,397,797.20
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Solution
The fourth proportional to 118,747,429.20, 178,121,143.80 and 73,397,797.20 is: 110,096,695.80
Step by Step Solution
- Step 1: Write the proportion equation
118,747,429.20 : 178,121,143.80 = 73,397,797.20 : x - Step 2: Convert to fraction form
118,747,429.20/178,121,143.80 = 73,397,797.20/x - Step 3: Cross multiply
118,747,429.20x = 178,121,143.80 × 73,397,797.20 - Step 4: Simplify right side
118,747,429.20x = 13,073,699,589,664,438 - Step 5: Solve for x
x = 13,073,699,589,664,438/118,747,429.20 - Step 6: Final answer
x = 110,096,695.80
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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.