Home / 71,914,727.20-107,886,087.60-20,798,413.60

Finding the Fourth Proportional to 71,914,727.20, 107,886,087.60 and 20,798,413.60

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Solution

The fourth proportional to 71,914,727.20, 107,886,087.60 and 20,798,413.60 is: 31,201,668.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,914,727.20 : 107,886,087.60 = 20,798,413.60 : x
  2. Step 2: Convert to fraction form
    71,914,727.20/107,886,087.60 = 20,798,413.60/x
  3. Step 3: Cross multiply
    71,914,727.20x = 107,886,087.60 × 20,798,413.60
  4. Step 4: Simplify right side
    71,914,727.20x = 2,243,859,471,590,631.50
  5. Step 5: Solve for x
    x = 2,243,859,471,590,631.50/71,914,727.20
  6. Step 6: Final answer
    x = 31,201,668.41

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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.