Home / 20,806,162.56-31,221,573.21-11,591,847.50

Finding the Fourth Proportional to 20,806,162.56, 31,221,573.21 and 11,591,847.50

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Solution

The fourth proportional to 20,806,162.56, 31,221,573.21 and 11,591,847.50 is: 17,394,640.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,162.56 : 31,221,573.21 = 11,591,847.50 : x
  2. Step 2: Convert to fraction form
    20,806,162.56/31,221,573.21 = 11,591,847.50/x
  3. Step 3: Cross multiply
    20,806,162.56x = 31,221,573.21 × 11,591,847.50
  4. Step 4: Simplify right side
    20,806,162.56x = 361,915,715,204,297.56
  5. Step 5: Solve for x
    x = 361,915,715,204,297.56/20,806,162.56
  6. Step 6: Final answer
    x = 17,394,640.37

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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.