Home / 2,187,534.20-3,281,301.30-1,988,079.80

Finding the Fourth Proportional to 2,187,534.20, 3,281,301.30 and 1,988,079.80

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Solution

The fourth proportional to 2,187,534.20, 3,281,301.30 and 1,988,079.80 is: 2,982,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,534.20 : 3,281,301.30 = 1,988,079.80 : x
  2. Step 2: Convert to fraction form
    2,187,534.20/3,281,301.30 = 1,988,079.80/x
  3. Step 3: Cross multiply
    2,187,534.20x = 3,281,301.30 × 1,988,079.80
  4. Step 4: Simplify right side
    2,187,534.20x = 6,523,488,832,243.74
  5. Step 5: Solve for x
    x = 6,523,488,832,243.74/2,187,534.20
  6. Step 6: Final answer
    x = 2,982,119.70

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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.