Home / 20,956,817.10-31,435,225.65-19,964,793.90

Finding the Fourth Proportional to 20,956,817.10, 31,435,225.65 and 19,964,793.90

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Solution

The fourth proportional to 20,956,817.10, 31,435,225.65 and 19,964,793.90 is: 29,947,190.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,817.10 : 31,435,225.65 = 19,964,793.90 : x
  2. Step 2: Convert to fraction form
    20,956,817.10/31,435,225.65 = 19,964,793.90/x
  3. Step 3: Cross multiply
    20,956,817.10x = 31,435,225.65 × 19,964,793.90
  4. Step 4: Simplify right side
    20,956,817.10x = 627,597,801,302,243.50
  5. Step 5: Solve for x
    x = 627,597,801,302,243.50/20,956,817.10
  6. Step 6: Final answer
    x = 29,947,190.85

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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.