Finding the Fourth Proportional to 252,364,000.20, 378,546,000.30 and 217,726,585.80
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Solution
The fourth proportional to 252,364,000.20, 378,546,000.30 and 217,726,585.80 is: 326,589,878.70
Step by Step Solution
- Step 1: Write the proportion equation
252,364,000.20 : 378,546,000.30 = 217,726,585.80 : x - Step 2: Convert to fraction form
252,364,000.20/378,546,000.30 = 217,726,585.80/x - Step 3: Cross multiply
252,364,000.20x = 378,546,000.30 × 217,726,585.80 - Step 4: Simplify right side
252,364,000.20x = 82,419,528,213,564,784 - Step 5: Solve for x
x = 82,419,528,213,564,784/252,364,000.20 - Step 6: Final answer
x = 326,589,878.70
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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.