Home / 20,513,872.96-30,769,954.08-5,367,469.12

Finding the Fourth Proportional to 20,513,872.96, 30,769,954.08 and 5,367,469.12

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Solution

The fourth proportional to 20,513,872.96, 30,769,954.08 and 5,367,469.12 is: 8,050,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513,872.96 : 30,769,954.08 = 5,367,469.12 : x
  2. Step 2: Convert to fraction form
    20,513,872.96/30,769,954.08 = 5,367,469.12/x
  3. Step 3: Cross multiply
    20,513,872.96x = 30,769,954.08 × 5,367,469.12
  4. Step 4: Simplify right side
    20,513,872.96x = 165,156,778,348,218
  5. Step 5: Solve for x
    x = 165,156,778,348,218/20,513,872.96
  6. Step 6: Final answer
    x = 8,050,979.87

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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.