Home / 279,936,270.40-419,904,405.60-272,377,998.40

Finding the Fourth Proportional to 279,936,270.40, 419,904,405.60 and 272,377,998.40

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Solution

The fourth proportional to 279,936,270.40, 419,904,405.60 and 272,377,998.40 is: 408,566,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,270.40 : 419,904,405.60 = 272,377,998.40 : x
  2. Step 2: Convert to fraction form
    279,936,270.40/419,904,405.60 = 272,377,998.40/x
  3. Step 3: Cross multiply
    279,936,270.40x = 419,904,405.60 × 272,377,998.40
  4. Step 4: Simplify right side
    279,936,270.40x = 114,372,721,516,669,744
  5. Step 5: Solve for x
    x = 114,372,721,516,669,744/279,936,270.40
  6. Step 6: Final answer
    x = 408,566,997.60

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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.