Home / 10,791,179.10-16,186,768.65-8,381,979.90

Finding the Fourth Proportional to 10,791,179.10, 16,186,768.65 and 8,381,979.90

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Solution

The fourth proportional to 10,791,179.10, 16,186,768.65 and 8,381,979.90 is: 12,572,969.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791,179.10 : 16,186,768.65 = 8,381,979.90 : x
  2. Step 2: Convert to fraction form
    10,791,179.10/16,186,768.65 = 8,381,979.90/x
  3. Step 3: Cross multiply
    10,791,179.10x = 16,186,768.65 × 8,381,979.90
  4. Step 4: Simplify right side
    10,791,179.10x = 135,677,169,470,250.14
  5. Step 5: Solve for x
    x = 135,677,169,470,250.14/10,791,179.10
  6. Step 6: Final answer
    x = 12,572,969.85

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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.