Home / 218,422,687.12-327,635,255.43-72,855,848.86

Finding the Fourth Proportional to 218,422,687.12, 327,635,255.43 and 72,855,848.86

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Solution

The fourth proportional to 218,422,687.12, 327,635,255.43 and 72,855,848.86 is: 109,284,181.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,422,687.12 : 327,635,255.43 = 72,855,848.86 : x
  2. Step 2: Convert to fraction form
    218,422,687.12/327,635,255.43 = 72,855,848.86/x
  3. Step 3: Cross multiply
    218,422,687.12x = 327,635,255.43 × 72,855,848.86
  4. Step 4: Simplify right side
    218,422,687.12x = 23,870,144,649,996,488
  5. Step 5: Solve for x
    x = 23,870,144,649,996,488/218,422,687.12
  6. Step 6: Final answer
    x = 109,284,181.81

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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.