Home / 472,392,687.30-708,589,030.95-278,204,145.90

Finding the Fourth Proportional to 472,392,687.30, 708,589,030.95 and 278,204,145.90

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Solution

The fourth proportional to 472,392,687.30, 708,589,030.95 and 278,204,145.90 is: 417,306,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,687.30 : 708,589,030.95 = 278,204,145.90 : x
  2. Step 2: Convert to fraction form
    472,392,687.30/708,589,030.95 = 278,204,145.90/x
  3. Step 3: Cross multiply
    472,392,687.30x = 708,589,030.95 × 278,204,145.90
  4. Step 4: Simplify right side
    472,392,687.30x = 197,132,406,149,553,408
  5. Step 5: Solve for x
    x = 197,132,406,149,553,408/472,392,687.30
  6. Step 6: Final answer
    x = 417,306,218.85

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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.