Home / 279,936,553.40-419,904,830.10-142,187,046.20

Finding the Fourth Proportional to 279,936,553.40, 419,904,830.10 and 142,187,046.20

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Solution

The fourth proportional to 279,936,553.40, 419,904,830.10 and 142,187,046.20 is: 213,280,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,553.40 : 419,904,830.10 = 142,187,046.20 : x
  2. Step 2: Convert to fraction form
    279,936,553.40/419,904,830.10 = 142,187,046.20/x
  3. Step 3: Cross multiply
    279,936,553.40x = 419,904,830.10 × 142,187,046.20
  4. Step 4: Simplify right side
    279,936,553.40x = 59,705,027,477,031,848
  5. Step 5: Solve for x
    x = 59,705,027,477,031,848/279,936,553.40
  6. Step 6: Final answer
    x = 213,280,569.30

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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.