Home / 20,391,517.80-30,587,276.70-11,321,591.40

Finding the Fourth Proportional to 20,391,517.80, 30,587,276.70 and 11,321,591.40

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Solution

The fourth proportional to 20,391,517.80, 30,587,276.70 and 11,321,591.40 is: 16,982,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391,517.80 : 30,587,276.70 = 11,321,591.40 : x
  2. Step 2: Convert to fraction form
    20,391,517.80/30,587,276.70 = 11,321,591.40/x
  3. Step 3: Cross multiply
    20,391,517.80x = 30,587,276.70 × 11,321,591.40
  4. Step 4: Simplify right side
    20,391,517.80x = 346,296,648,836,140.38
  5. Step 5: Solve for x
    x = 346,296,648,836,140.38/20,391,517.80
  6. Step 6: Final answer
    x = 16,982,387.10

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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.