Home / 20,672,517.12-31,006,413.69-5,527,629.60

Finding the Fourth Proportional to 20,672,517.12, 31,006,413.69 and 5,527,629.60

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Solution

The fourth proportional to 20,672,517.12, 31,006,413.69 and 5,527,629.60 is: 8,290,812.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672,517.12 : 31,006,413.69 = 5,527,629.60 : x
  2. Step 2: Convert to fraction form
    20,672,517.12/31,006,413.69 = 5,527,629.60/x
  3. Step 3: Cross multiply
    20,672,517.12x = 31,006,413.69 × 5,527,629.60
  4. Step 4: Simplify right side
    20,672,517.12x = 171,391,970,102,689.22
  5. Step 5: Solve for x
    x = 171,391,970,102,689.22/20,672,517.12
  6. Step 6: Final answer
    x = 8,290,812.83

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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.