Home / 8,601,335.20-12,902,002.80-7,672,362.40

Finding the Fourth Proportional to 8,601,335.20, 12,902,002.80 and 7,672,362.40

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Solution

The fourth proportional to 8,601,335.20, 12,902,002.80 and 7,672,362.40 is: 11,508,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601,335.20 : 12,902,002.80 = 7,672,362.40 : x
  2. Step 2: Convert to fraction form
    8,601,335.20/12,902,002.80 = 7,672,362.40/x
  3. Step 3: Cross multiply
    8,601,335.20x = 12,902,002.80 × 7,672,362.40
  4. Step 4: Simplify right side
    8,601,335.20x = 98,988,841,167,414.73
  5. Step 5: Solve for x
    x = 98,988,841,167,414.73/8,601,335.20
  6. Step 6: Final answer
    x = 11,508,543.60

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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.