Home / 280,812,791.10-420,715,301.85-240,502,007.10

Finding the Fourth Proportional to 280,812,791.10, 420,715,301.85 and 240,502,007.10

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Solution

The fourth proportional to 280,812,791.10, 420,715,301.85 and 240,502,007.10 is: 360,321,458.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,812,791.10 : 420,715,301.85 = 240,502,007.10 : x
  2. Step 2: Convert to fraction form
    280,812,791.10/420,715,301.85 = 240,502,007.10/x
  3. Step 3: Cross multiply
    280,812,791.10x = 420,715,301.85 × 240,502,007.10
  4. Step 4: Simplify right side
    280,812,791.10x = 101,182,874,512,607,344
  5. Step 5: Solve for x
    x = 101,182,874,512,607,344/280,812,791.10
  6. Step 6: Final answer
    x = 360,321,458.71

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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.