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Finding the Fourth Proportional to 8,869,609.80, 13,304,414.70 and 8,019,304.20

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Solution

The fourth proportional to 8,869,609.80, 13,304,414.70 and 8,019,304.20 is: 12,028,956.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869,609.80 : 13,304,414.70 = 8,019,304.20 : x
  2. Step 2: Convert to fraction form
    8,869,609.80/13,304,414.70 = 8,019,304.20/x
  3. Step 3: Cross multiply
    8,869,609.80x = 13,304,414.70 × 8,019,304.20
  4. Step 4: Simplify right side
    8,869,609.80x = 106,692,148,682,251.73
  5. Step 5: Solve for x
    x = 106,692,148,682,251.73/8,869,609.80
  6. Step 6: Final answer
    x = 12,028,956.30

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Double scale
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Similar ratio
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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.