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Finding the Fourth Proportional to 181,978,014.52, 273,074,884.62 and 67,043,203.84

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Solution

The fourth proportional to 181,978,014.52, 273,074,884.62 and 67,043,203.84 is: 100,604,543.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,978,014.52 : 273,074,884.62 = 67,043,203.84 : x
  2. Step 2: Convert to fraction form
    181,978,014.52/273,074,884.62 = 67,043,203.84/x
  3. Step 3: Cross multiply
    181,978,014.52x = 273,074,884.62 × 67,043,203.84
  4. Step 4: Simplify right side
    181,978,014.52x = 18,307,815,153,163,144
  5. Step 5: Solve for x
    x = 18,307,815,153,163,144/181,978,014.52
  6. Step 6: Final answer
    x = 100,604,543.91

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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.