Home / 20,690,517.86-28,552,914.81-11,523,160.61

Finding the Fourth Proportional to 20,690,517.86, 28,552,914.81 and 11,523,160.61

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Solution

The fourth proportional to 20,690,517.86, 28,552,914.81 and 11,523,160.61 is: 15,901,961.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,690,517.86 : 28,552,914.81 = 11,523,160.61 : x
  2. Step 2: Convert to fraction form
    20,690,517.86/28,552,914.81 = 11,523,160.61/x
  3. Step 3: Cross multiply
    20,690,517.86x = 28,552,914.81 × 11,523,160.61
  4. Step 4: Simplify right side
    20,690,517.86x = 329,019,823,096,513.06
  5. Step 5: Solve for x
    x = 329,019,823,096,513.06/20,690,517.86
  6. Step 6: Final answer
    x = 15,901,961.73

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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.