Home / 278,023,248.40-417,034,872.60-256,524,163.60

Finding the Fourth Proportional to 278,023,248.40, 417,034,872.60 and 256,524,163.60

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Solution

The fourth proportional to 278,023,248.40, 417,034,872.60 and 256,524,163.60 is: 384,786,245.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,023,248.40 : 417,034,872.60 = 256,524,163.60 : x
  2. Step 2: Convert to fraction form
    278,023,248.40/417,034,872.60 = 256,524,163.60/x
  3. Step 3: Cross multiply
    278,023,248.40x = 417,034,872.60 × 256,524,163.60
  4. Step 4: Simplify right side
    278,023,248.40x = 106,979,521,885,747,568
  5. Step 5: Solve for x
    x = 106,979,521,885,747,568/278,023,248.40
  6. Step 6: Final answer
    x = 384,786,245.40

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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.