Home / 218,733,958.80-328,226,909.40-82,517,101.20

Finding the Fourth Proportional to 218,733,958.80, 328,226,909.40 and 82,517,101.20

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Solution

The fourth proportional to 218,733,958.80, 328,226,909.40 and 82,517,101.20 is: 123,823,174.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,733,958.80 : 328,226,909.40 = 82,517,101.20 : x
  2. Step 2: Convert to fraction form
    218,733,958.80/328,226,909.40 = 82,517,101.20/x
  3. Step 3: Cross multiply
    218,733,958.80x = 328,226,909.40 × 82,517,101.20
  4. Step 4: Simplify right side
    218,733,958.80x = 27,084,333,099,523,032
  5. Step 5: Solve for x
    x = 27,084,333,099,523,032/218,733,958.80
  6. Step 6: Final answer
    x = 123,823,174.27

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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.