Home / 8,586,814.60-12,880,221.90-6,445,304.20

Finding the Fourth Proportional to 8,586,814.60, 12,880,221.90 and 6,445,304.20

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Solution

The fourth proportional to 8,586,814.60, 12,880,221.90 and 6,445,304.20 is: 9,667,956.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586,814.60 : 12,880,221.90 = 6,445,304.20 : x
  2. Step 2: Convert to fraction form
    8,586,814.60/12,880,221.90 = 6,445,304.20/x
  3. Step 3: Cross multiply
    8,586,814.60x = 12,880,221.90 × 6,445,304.20
  4. Step 4: Simplify right side
    8,586,814.60x = 83,016,948,309,001.98
  5. Step 5: Solve for x
    x = 83,016,948,309,001.98/8,586,814.60
  6. Step 6: Final answer
    x = 9,667,956.30

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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.