Home / 256,022,348.76-383,990,208.05-71,747,413.77

Finding the Fourth Proportional to 256,022,348.76, 383,990,208.05 and 71,747,413.77

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Solution

The fourth proportional to 256,022,348.76, 383,990,208.05 and 71,747,413.77 is: 107,608,982.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,022,348.76 : 383,990,208.05 = 71,747,413.77 : x
  2. Step 2: Convert to fraction form
    256,022,348.76/383,990,208.05 = 71,747,413.77/x
  3. Step 3: Cross multiply
    256,022,348.76x = 383,990,208.05 × 71,747,413.77
  4. Step 4: Simplify right side
    256,022,348.76x = 27,550,304,340,591,736
  5. Step 5: Solve for x
    x = 27,550,304,340,591,736/256,022,348.76
  6. Step 6: Final answer
    x = 107,608,982.09

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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.