Home / 20,956,546.70-31,434,820.05-8,839,691.90

Finding the Fourth Proportional to 20,956,546.70, 31,434,820.05 and 8,839,691.90

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Solution

The fourth proportional to 20,956,546.70, 31,434,820.05 and 8,839,691.90 is: 13,259,537.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,546.70 : 31,434,820.05 = 8,839,691.90 : x
  2. Step 2: Convert to fraction form
    20,956,546.70/31,434,820.05 = 8,839,691.90/x
  3. Step 3: Cross multiply
    20,956,546.70x = 31,434,820.05 × 8,839,691.90
  4. Step 4: Simplify right side
    20,956,546.70x = 277,874,124,173,942.62
  5. Step 5: Solve for x
    x = 277,874,124,173,942.62/20,956,546.70
  6. Step 6: Final answer
    x = 13,259,537.85

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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.