Home / 21,454,164.60-32,181,246.90-7,988,206.20

Finding the Fourth Proportional to 21,454,164.60, 32,181,246.90 and 7,988,206.20

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Solution

The fourth proportional to 21,454,164.60, 32,181,246.90 and 7,988,206.20 is: 11,982,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454,164.60 : 32,181,246.90 = 7,988,206.20 : x
  2. Step 2: Convert to fraction form
    21,454,164.60/32,181,246.90 = 7,988,206.20/x
  3. Step 3: Cross multiply
    21,454,164.60x = 32,181,246.90 × 7,988,206.20
  4. Step 4: Simplify right side
    21,454,164.60x = 257,070,436,010,310.78
  5. Step 5: Solve for x
    x = 257,070,436,010,310.78/21,454,164.60
  6. Step 6: Final answer
    x = 11,982,309.30

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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.