Home / 12,356,791.82-18,538,274.97-8,720,621.38

Finding the Fourth Proportional to 12,356,791.82, 18,538,274.97 and 8,720,621.38

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Solution

The fourth proportional to 12,356,791.82, 18,538,274.97 and 8,720,621.38 is: 13,083,110.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356,791.82 : 18,538,274.97 = 8,720,621.38 : x
  2. Step 2: Convert to fraction form
    12,356,791.82/18,538,274.97 = 8,720,621.38/x
  3. Step 3: Cross multiply
    12,356,791.82x = 18,538,274.97 × 8,720,621.38
  4. Step 4: Simplify right side
    12,356,791.82x = 161,665,277,051,700.88
  5. Step 5: Solve for x
    x = 161,665,277,051,700.88/12,356,791.82
  6. Step 6: Final answer
    x = 13,083,110.84

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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.