Home / 1,005,533,999.90-1,508,300,999.85-278,522,711.90

Finding the Fourth Proportional to 1,005,533,999.90, 1,508,300,999.85 and 278,522,711.90

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Solution

The fourth proportional to 1,005,533,999.90, 1,508,300,999.85 and 278,522,711.90 is: 417,784,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,533,999.90 : 1,508,300,999.85 = 278,522,711.90 : x
  2. Step 2: Convert to fraction form
    1,005,533,999.90/1,508,300,999.85 = 278,522,711.90/x
  3. Step 3: Cross multiply
    1,005,533,999.90x = 1,508,300,999.85 × 278,522,711.90
  4. Step 4: Simplify right side
    1,005,533,999.90x = 420,096,084,839,703,424
  5. Step 5: Solve for x
    x = 420,096,084,839,703,424/1,005,533,999.90
  6. Step 6: Final answer
    x = 417,784,067.85

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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.