Finding the Fourth Proportional to 38,746,579.20, 58,132,310.40 and 17,172,844.80
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Solution
The fourth proportional to 38,746,579.20, 58,132,310.40 and 17,172,844.80 is: 25,764,781.43
Step by Step Solution
- Step 1: Write the proportion equation
38,746,579.20 : 58,132,310.40 = 17,172,844.80 : x - Step 2: Convert to fraction form
38,746,579.20/58,132,310.40 = 17,172,844.80/x - Step 3: Cross multiply
38,746,579.20x = 58,132,310.40 × 17,172,844.80 - Step 4: Simplify right side
38,746,579.20x = 998,297,144,364,626 - Step 5: Solve for x
x = 998,297,144,364,626/38,746,579.20 - Step 6: Final answer
x = 25,764,781.43
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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.