Home / 278,040,400.80-417,060,601.20-73,589,143.20

Finding the Fourth Proportional to 278,040,400.80, 417,060,601.20 and 73,589,143.20

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Solution

The fourth proportional to 278,040,400.80, 417,060,601.20 and 73,589,143.20 is: 110,383,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,040,400.80 : 417,060,601.20 = 73,589,143.20 : x
  2. Step 2: Convert to fraction form
    278,040,400.80/417,060,601.20 = 73,589,143.20/x
  3. Step 3: Cross multiply
    278,040,400.80x = 417,060,601.20 × 73,589,143.20
  4. Step 4: Simplify right side
    278,040,400.80x = 30,691,132,304,784,892
  5. Step 5: Solve for x
    x = 30,691,132,304,784,892/278,040,400.80
  6. Step 6: Final answer
    x = 110,383,714.80

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1.5x scale

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.