Home / 2,679,948,712.80-4,020,049,040.40-839,761,423.20

Finding the Fourth Proportional to 2,679,948,712.80, 4,020,049,040.40 and 839,761,423.20

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Solution

The fourth proportional to 2,679,948,712.80, 4,020,049,040.40 and 839,761,423.20 is: 1,259,681,607.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679,948,712.80 : 4,020,049,040.40 = 839,761,423.20 : x
  2. Step 2: Convert to fraction form
    2,679,948,712.80/4,020,049,040.40 = 839,761,423.20/x
  3. Step 3: Cross multiply
    2,679,948,712.80x = 4,020,049,040.40 × 839,761,423.20
  4. Step 4: Simplify right side
    2,679,948,712.80x = 3,375,882,103,500,098,560
  5. Step 5: Solve for x
    x = 3,375,882,103,500,098,560/2,679,948,712.80
  6. Step 6: Final answer
    x = 1,259,681,607.85

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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.