Home / 122,799,952.20-169,540,413.20-78,171,105.52

Finding the Fourth Proportional to 122,799,952.20, 169,540,413.20 and 78,171,105.52

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Solution

The fourth proportional to 122,799,952.20, 169,540,413.20 and 78,171,105.52 is: 107,924,810.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,799,952.20 : 169,540,413.20 = 78,171,105.52 : x
  2. Step 2: Convert to fraction form
    122,799,952.20/169,540,413.20 = 78,171,105.52/x
  3. Step 3: Cross multiply
    122,799,952.20x = 169,540,413.20 × 78,171,105.52
  4. Step 4: Simplify right side
    122,799,952.20x = 13,253,161,530,161,600
  5. Step 5: Solve for x
    x = 13,253,161,530,161,600/122,799,952.20
  6. Step 6: Final answer
    x = 107,924,810.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.