Home / 8,279,981.80-12,419,972.70-2,600,780.20

Finding the Fourth Proportional to 8,279,981.80, 12,419,972.70 and 2,600,780.20

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Solution

The fourth proportional to 8,279,981.80, 12,419,972.70 and 2,600,780.20 is: 3,901,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279,981.80 : 12,419,972.70 = 2,600,780.20 : x
  2. Step 2: Convert to fraction form
    8,279,981.80/12,419,972.70 = 2,600,780.20/x
  3. Step 3: Cross multiply
    8,279,981.80x = 12,419,972.70 × 2,600,780.20
  4. Step 4: Simplify right side
    8,279,981.80x = 32,301,619,082,700.54
  5. Step 5: Solve for x
    x = 32,301,619,082,700.54/8,279,981.80
  6. Step 6: Final answer
    x = 3,901,170.30

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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.