Home / 20,722,198.80-31,050,120.60-13,135,587.60

Finding the Fourth Proportional to 20,722,198.80, 31,050,120.60 and 13,135,587.60

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Solution

The fourth proportional to 20,722,198.80, 31,050,120.60 and 13,135,587.60 is: 19,682,350.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722,198.80 : 31,050,120.60 = 13,135,587.60 : x
  2. Step 2: Convert to fraction form
    20,722,198.80/31,050,120.60 = 13,135,587.60/x
  3. Step 3: Cross multiply
    20,722,198.80x = 31,050,120.60 × 13,135,587.60
  4. Step 4: Simplify right side
    20,722,198.80x = 407,861,579,131,864.56
  5. Step 5: Solve for x
    x = 407,861,579,131,864.56/20,722,198.80
  6. Step 6: Final answer
    x = 19,682,350.46

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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.