Home / 3,278,732.80-4,912,850.40-2,155,489.60

Finding the Fourth Proportional to 3,278,732.80, 4,912,850.40 and 2,155,489.60

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Solution

The fourth proportional to 3,278,732.80, 4,912,850.40 and 2,155,489.60 is: 3,229,783.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278,732.80 : 4,912,850.40 = 2,155,489.60 : x
  2. Step 2: Convert to fraction form
    3,278,732.80/4,912,850.40 = 2,155,489.60/x
  3. Step 3: Cross multiply
    3,278,732.80x = 4,912,850.40 × 2,155,489.60
  4. Step 4: Simplify right side
    3,278,732.80x = 10,589,597,943,555.84
  5. Step 5: Solve for x
    x = 10,589,597,943,555.84/3,278,732.80
  6. Step 6: Final answer
    x = 3,229,783.76

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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.