Home / 256,125,338.20-383,972,719.02-207,482,563.72

Finding the Fourth Proportional to 256,125,338.20, 383,972,719.02 and 207,482,563.72

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Solution

The fourth proportional to 256,125,338.20, 383,972,719.02 and 207,482,563.72 is: 311,049,444.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,125,338.20 : 383,972,719.02 = 207,482,563.72 : x
  2. Step 2: Convert to fraction form
    256,125,338.20/383,972,719.02 = 207,482,563.72/x
  3. Step 3: Cross multiply
    256,125,338.20x = 383,972,719.02 × 207,482,563.72
  4. Step 4: Simplify right side
    256,125,338.20x = 79,667,644,140,808,800
  5. Step 5: Solve for x
    x = 79,667,644,140,808,800/256,125,338.20
  6. Step 6: Final answer
    x = 311,049,444.39

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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.