Home / 218,252,081.12-327,382,773.33-78,201,686.58

Finding the Fourth Proportional to 218,252,081.12, 327,382,773.33 and 78,201,686.58

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Solution

The fourth proportional to 218,252,081.12, 327,382,773.33 and 78,201,686.58 is: 117,304,196.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,252,081.12 : 327,382,773.33 = 78,201,686.58 : x
  2. Step 2: Convert to fraction form
    218,252,081.12/327,382,773.33 = 78,201,686.58/x
  3. Step 3: Cross multiply
    218,252,081.12x = 327,382,773.33 × 78,201,686.58
  4. Step 4: Simplify right side
    218,252,081.12x = 25,601,885,031,643,840
  5. Step 5: Solve for x
    x = 25,601,885,031,643,840/218,252,081.12
  6. Step 6: Final answer
    x = 117,304,196.60

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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.