Home / 139,538,540.25-192,563,185.55-77,673,493.44

Finding the Fourth Proportional to 139,538,540.25, 192,563,185.55 and 77,673,493.44

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Solution

The fourth proportional to 139,538,540.25, 192,563,185.55 and 77,673,493.44 is: 107,189,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,538,540.25 : 192,563,185.55 = 77,673,493.44 : x
  2. Step 2: Convert to fraction form
    139,538,540.25/192,563,185.55 = 77,673,493.44/x
  3. Step 3: Cross multiply
    139,538,540.25x = 192,563,185.55 × 77,673,493.44
  4. Step 4: Simplify right side
    139,538,540.25x = 14,957,055,329,215,058
  5. Step 5: Solve for x
    x = 14,957,055,329,215,058/139,538,540.25
  6. Step 6: Final answer
    x = 107,189,420.95

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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.