Home / 279,937,519.80-419,906,279.70-178,152,790.20

Finding the Fourth Proportional to 279,937,519.80, 419,906,279.70 and 178,152,790.20

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Solution

The fourth proportional to 279,937,519.80, 419,906,279.70 and 178,152,790.20 is: 267,229,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,937,519.80 : 419,906,279.70 = 178,152,790.20 : x
  2. Step 2: Convert to fraction form
    279,937,519.80/419,906,279.70 = 178,152,790.20/x
  3. Step 3: Cross multiply
    279,937,519.80x = 419,906,279.70 × 178,152,790.20
  4. Step 4: Simplify right side
    279,937,519.80x = 74,807,475,351,056,608
  5. Step 5: Solve for x
    x = 74,807,475,351,056,608/279,937,519.80
  6. Step 6: Final answer
    x = 267,229,185.30

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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.