Home / 278,518,513.20-417,777,769.80-149,378,350.20

Finding the Fourth Proportional to 278,518,513.20, 417,777,769.80 and 149,378,350.20

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Solution

The fourth proportional to 278,518,513.20, 417,777,769.80 and 149,378,350.20 is: 224,067,525.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,518,513.20 : 417,777,769.80 = 149,378,350.20 : x
  2. Step 2: Convert to fraction form
    278,518,513.20/417,777,769.80 = 149,378,350.20/x
  3. Step 3: Cross multiply
    278,518,513.20x = 417,777,769.80 × 149,378,350.20
  4. Step 4: Simplify right side
    278,518,513.20x = 62,406,954,002,959,384
  5. Step 5: Solve for x
    x = 62,406,954,002,959,384/278,518,513.20
  6. Step 6: Final answer
    x = 224,067,525.30

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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.