Home / 419,904,512.70-629,856,769.05-267,227,418.30

Finding the Fourth Proportional to 419,904,512.70, 629,856,769.05 and 267,227,418.30

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Solution

The fourth proportional to 419,904,512.70, 629,856,769.05 and 267,227,418.30 is: 400,841,127.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,512.70 : 629,856,769.05 = 267,227,418.30 : x
  2. Step 2: Convert to fraction form
    419,904,512.70/629,856,769.05 = 267,227,418.30/x
  3. Step 3: Cross multiply
    419,904,512.70x = 629,856,769.05 × 267,227,418.30
  4. Step 4: Simplify right side
    419,904,512.70x = 168,314,998,292,010,848
  5. Step 5: Solve for x
    x = 168,314,998,292,010,848/419,904,512.70
  6. Step 6: Final answer
    x = 400,841,127.45

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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.