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Finding the Fourth Proportional to 8,798,992.80, 13,198,489.20 and 7,381,816.80

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Solution

The fourth proportional to 8,798,992.80, 13,198,489.20 and 7,381,816.80 is: 11,072,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798,992.80 : 13,198,489.20 = 7,381,816.80 : x
  2. Step 2: Convert to fraction form
    8,798,992.80/13,198,489.20 = 7,381,816.80/x
  3. Step 3: Cross multiply
    8,798,992.80x = 13,198,489.20 × 7,381,816.80
  4. Step 4: Simplify right side
    8,798,992.80x = 97,428,829,311,178.55
  5. Step 5: Solve for x
    x = 97,428,829,311,178.55/8,798,992.80
  6. Step 6: Final answer
    x = 11,072,725.20

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Double scale
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Similar ratio
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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.