Home / 279,936,007.20-419,904,010.80-268,598,599.20

Finding the Fourth Proportional to 279,936,007.20, 419,904,010.80 and 268,598,599.20

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Solution

The fourth proportional to 279,936,007.20, 419,904,010.80 and 268,598,599.20 is: 402,897,898.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,007.20 : 419,904,010.80 = 268,598,599.20 : x
  2. Step 2: Convert to fraction form
    279,936,007.20/419,904,010.80 = 268,598,599.20/x
  3. Step 3: Cross multiply
    279,936,007.20x = 419,904,010.80 × 268,598,599.20
  4. Step 4: Simplify right side
    279,936,007.20x = 112,785,629,099,341,664
  5. Step 5: Solve for x
    x = 112,785,629,099,341,664/279,936,007.20
  6. Step 6: Final answer
    x = 402,897,898.80

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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.