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Finding the Fourth Proportional to 181,978,013.77, 273,074,883.50 and 67,043,203.09

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Solution

The fourth proportional to 181,978,013.77, 273,074,883.50 and 67,043,203.09 is: 100,604,542.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,978,013.77 : 273,074,883.50 = 67,043,203.09 : x
  2. Step 2: Convert to fraction form
    181,978,013.77/273,074,883.50 = 67,043,203.09/x
  3. Step 3: Cross multiply
    181,978,013.77x = 273,074,883.50 × 67,043,203.09
  4. Step 4: Simplify right side
    181,978,013.77x = 18,307,814,872,933,376
  5. Step 5: Solve for x
    x = 18,307,814,872,933,376/181,978,013.77
  6. Step 6: Final answer
    x = 100,604,542.79

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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.