Home / 20,226,961.10-27,906,591.18-12,378,291.38

Finding the Fourth Proportional to 20,226,961.10, 27,906,591.18 and 12,378,291.38

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Solution

The fourth proportional to 20,226,961.10, 27,906,591.18 and 12,378,291.38 is: 17,077,993.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226,961.10 : 27,906,591.18 = 12,378,291.38 : x
  2. Step 2: Convert to fraction form
    20,226,961.10/27,906,591.18 = 12,378,291.38/x
  3. Step 3: Cross multiply
    20,226,961.10x = 27,906,591.18 × 12,378,291.38
  4. Step 4: Simplify right side
    20,226,961.10x = 345,435,917,060,113.38
  5. Step 5: Solve for x
    x = 345,435,917,060,113.38/20,226,961.10
  6. Step 6: Final answer
    x = 17,077,993.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.