Home / 256,125,339.20-383,972,720.52-207,482,564.72

Finding the Fourth Proportional to 256,125,339.20, 383,972,720.52 and 207,482,564.72

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Solution

The fourth proportional to 256,125,339.20, 383,972,720.52 and 207,482,564.72 is: 311,049,445.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,125,339.20 : 383,972,720.52 = 207,482,564.72 : x
  2. Step 2: Convert to fraction form
    256,125,339.20/383,972,720.52 = 207,482,564.72/x
  3. Step 3: Cross multiply
    256,125,339.20x = 383,972,720.52 × 207,482,564.72
  4. Step 4: Simplify right side
    256,125,339.20x = 79,667,644,836,005,360
  5. Step 5: Solve for x
    x = 79,667,644,836,005,360/256,125,339.20
  6. Step 6: Final answer
    x = 311,049,445.89

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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.