Finding the Fourth Proportional to 118,102,652.80, 177,153,979.20 and 87,491,651.20
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Solution
The fourth proportional to 118,102,652.80, 177,153,979.20 and 87,491,651.20 is: 131,237,476.80
Step by Step Solution
- Step 1: Write the proportion equation
118,102,652.80 : 177,153,979.20 = 87,491,651.20 : x - Step 2: Convert to fraction form
118,102,652.80/177,153,979.20 = 87,491,651.20/x - Step 3: Cross multiply
118,102,652.80x = 177,153,979.20 × 87,491,651.20 - Step 4: Simplify right side
118,102,652.80x = 15,499,494,156,858,454 - Step 5: Solve for x
x = 15,499,494,156,858,454/118,102,652.80 - Step 6: Final answer
x = 131,237,476.80
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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.