Home / 218,815,353.05-328,246,016.45-71,274,410.64

Finding the Fourth Proportional to 218,815,353.05, 328,246,016.45 and 71,274,410.64

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Solution

The fourth proportional to 218,815,353.05, 328,246,016.45 and 71,274,410.64 is: 106,919,103.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,815,353.05 : 328,246,016.45 = 71,274,410.64 : x
  2. Step 2: Convert to fraction form
    218,815,353.05/328,246,016.45 = 71,274,410.64/x
  3. Step 3: Cross multiply
    218,815,353.05x = 328,246,016.45 × 71,274,410.64
  4. Step 4: Simplify right side
    218,815,353.05x = 23,395,541,367,045,124
  5. Step 5: Solve for x
    x = 23,395,541,367,045,124/218,815,353.05
  6. Step 6: Final answer
    x = 106,919,103.44

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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.