Home / 278,769,839.40-418,154,759.10-169,930,722.60

Finding the Fourth Proportional to 278,769,839.40, 418,154,759.10 and 169,930,722.60

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Solution

The fourth proportional to 278,769,839.40, 418,154,759.10 and 169,930,722.60 is: 254,896,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,769,839.40 : 418,154,759.10 = 169,930,722.60 : x
  2. Step 2: Convert to fraction form
    278,769,839.40/418,154,759.10 = 169,930,722.60/x
  3. Step 3: Cross multiply
    278,769,839.40x = 418,154,759.10 × 169,930,722.60
  4. Step 4: Simplify right side
    278,769,839.40x = 71,057,340,372,491,928
  5. Step 5: Solve for x
    x = 71,057,340,372,491,928/278,769,839.40
  6. Step 6: Final answer
    x = 254,896,083.90

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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.