Home / 218,910,010.80-328,159,729.80-82,686,932.40

Finding the Fourth Proportional to 218,910,010.80, 328,159,729.80 and 82,686,932.40

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Solution

The fourth proportional to 218,910,010.80, 328,159,729.80 and 82,686,932.40 is: 123,952,857.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,910,010.80 : 328,159,729.80 = 82,686,932.40 : x
  2. Step 2: Convert to fraction form
    218,910,010.80/328,159,729.80 = 82,686,932.40/x
  3. Step 3: Cross multiply
    218,910,010.80x = 328,159,729.80 × 82,686,932.40
  4. Step 4: Simplify right side
    218,910,010.80x = 27,134,521,394,374,868
  5. Step 5: Solve for x
    x = 27,134,521,394,374,868/218,910,010.80
  6. Step 6: Final answer
    x = 123,952,857.59

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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.