Home / 79,135,629.95-109,213,227.77-49,792,115.13

Finding the Fourth Proportional to 79,135,629.95, 109,213,227.77 and 49,792,115.13

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Solution

The fourth proportional to 79,135,629.95, 109,213,227.77 and 49,792,115.13 is: 68,716,930.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,135,629.95 : 109,213,227.77 = 49,792,115.13 : x
  2. Step 2: Convert to fraction form
    79,135,629.95/109,213,227.77 = 49,792,115.13/x
  3. Step 3: Cross multiply
    79,135,629.95x = 109,213,227.77 × 49,792,115.13
  4. Step 4: Simplify right side
    79,135,629.95x = 5,437,957,610,593,793
  5. Step 5: Solve for x
    x = 5,437,957,610,593,793/79,135,629.95
  6. Step 6: Final answer
    x = 68,716,930.85

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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.