Home / 279,132,414.84-418,761,069.30-85,059,018.90

Finding the Fourth Proportional to 279,132,414.84, 418,761,069.30 and 85,059,018.90

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Solution

The fourth proportional to 279,132,414.84, 418,761,069.30 and 85,059,018.90 is: 127,607,557.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,132,414.84 : 418,761,069.30 = 85,059,018.90 : x
  2. Step 2: Convert to fraction form
    279,132,414.84/418,761,069.30 = 85,059,018.90/x
  3. Step 3: Cross multiply
    279,132,414.84x = 418,761,069.30 × 85,059,018.90
  4. Step 4: Simplify right side
    279,132,414.84x = 35,619,405,708,172,912
  5. Step 5: Solve for x
    x = 35,619,405,708,172,912/279,132,414.84
  6. Step 6: Final answer
    x = 127,607,557.61

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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.