Home / 278,148,700.80-417,204,388.80-73,672,387.20

Finding the Fourth Proportional to 278,148,700.80, 417,204,388.80 and 73,672,387.20

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Solution

The fourth proportional to 278,148,700.80, 417,204,388.80 and 73,672,387.20 is: 110,503,637.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,148,700.80 : 417,204,388.80 = 73,672,387.20 : x
  2. Step 2: Convert to fraction form
    278,148,700.80/417,204,388.80 = 73,672,387.20/x
  3. Step 3: Cross multiply
    278,148,700.80x = 417,204,388.80 × 73,672,387.20
  4. Step 4: Simplify right side
    278,148,700.80x = 30,736,443,273,212,944
  5. Step 5: Solve for x
    x = 30,736,443,273,212,944/278,148,700.80
  6. Step 6: Final answer
    x = 110,503,637.75

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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.