Finding the Fourth Proportional to 256,125,337.20, 383,972,717.52 and 207,482,562.72
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Solution
The fourth proportional to 256,125,337.20, 383,972,717.52 and 207,482,562.72 is: 311,049,442.89
Step by Step Solution
- Step 1: Write the proportion equation
256,125,337.20 : 383,972,717.52 = 207,482,562.72 : x - Step 2: Convert to fraction form
256,125,337.20/383,972,717.52 = 207,482,562.72/x - Step 3: Cross multiply
256,125,337.20x = 383,972,717.52 × 207,482,562.72 - Step 4: Simplify right side
256,125,337.20x = 79,667,643,445,612,240 - Step 5: Solve for x
x = 79,667,643,445,612,240/256,125,337.20 - Step 6: Final answer
x = 311,049,442.89
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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.