Home / 20,722,240.80-31,050,183.60-13,135,629.60

Finding the Fourth Proportional to 20,722,240.80, 31,050,183.60 and 13,135,629.60

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Solution

The fourth proportional to 20,722,240.80, 31,050,183.60 and 13,135,629.60 is: 19,682,413.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722,240.80 : 31,050,183.60 = 13,135,629.60 : x
  2. Step 2: Convert to fraction form
    20,722,240.80/31,050,183.60 = 13,135,629.60/x
  3. Step 3: Cross multiply
    20,722,240.80x = 31,050,183.60 × 13,135,629.60
  4. Step 4: Simplify right side
    20,722,240.80x = 407,863,710,781,594.56
  5. Step 5: Solve for x
    x = 407,863,710,781,594.56/20,722,240.80
  6. Step 6: Final answer
    x = 19,682,413.44

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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.