Home / 638,498,103.53-957,287,500.34-392,346,174.56

Finding the Fourth Proportional to 638,498,103.53, 957,287,500.34 and 392,346,174.56

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Solution

The fourth proportional to 638,498,103.53, 957,287,500.34 and 392,346,174.56 is: 588,236,811.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,498,103.53 : 957,287,500.34 = 392,346,174.56 : x
  2. Step 2: Convert to fraction form
    638,498,103.53/957,287,500.34 = 392,346,174.56/x
  3. Step 3: Cross multiply
    638,498,103.53x = 957,287,500.34 × 392,346,174.56
  4. Step 4: Simplify right side
    638,498,103.53x = 375,588,088,712,503,744
  5. Step 5: Solve for x
    x = 375,588,088,712,503,744/638,498,103.53
  6. Step 6: Final answer
    x = 588,236,811.72

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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.