Finding the Fourth Proportional to 82,619,738.10, 123,816,231.99 and 52,273,276.02
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Solution
The fourth proportional to 82,619,738.10, 123,816,231.99 and 52,273,276.02 is: 78,338,181.89
Step by Step Solution
- Step 1: Write the proportion equation
82,619,738.10 : 123,816,231.99 = 52,273,276.02 : x - Step 2: Convert to fraction form
82,619,738.10/123,816,231.99 = 52,273,276.02/x - Step 3: Cross multiply
82,619,738.10x = 123,816,231.99 × 52,273,276.02 - Step 4: Simplify right side
82,619,738.10x = 6,472,280,070,569,624 - Step 5: Solve for x
x = 6,472,280,070,569,624/82,619,738.10 - Step 6: Final answer
x = 78,338,181.89
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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.