Home / 398,074,441.92-597,380,704.83-139,291,904.04

Finding the Fourth Proportional to 398,074,441.92, 597,380,704.83 and 139,291,904.04

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Solution

The fourth proportional to 398,074,441.92, 597,380,704.83 and 139,291,904.04 is: 209,031,997.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,074,441.92 : 597,380,704.83 = 139,291,904.04 : x
  2. Step 2: Convert to fraction form
    398,074,441.92/597,380,704.83 = 139,291,904.04/x
  3. Step 3: Cross multiply
    398,074,441.92x = 597,380,704.83 × 139,291,904.04
  4. Step 4: Simplify right side
    398,074,441.92x = 83,210,295,812,527,920
  5. Step 5: Solve for x
    x = 83,210,295,812,527,920/398,074,441.92
  6. Step 6: Final answer
    x = 209,031,997.66

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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.