Home / 140,449,584.96-193,820,711.76-78,570,956.88

Finding the Fourth Proportional to 140,449,584.96, 193,820,711.76 and 78,570,956.88

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Solution

The fourth proportional to 140,449,584.96, 193,820,711.76 and 78,570,956.88 is: 108,428,079.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,449,584.96 : 193,820,711.76 = 78,570,956.88 : x
  2. Step 2: Convert to fraction form
    140,449,584.96/193,820,711.76 = 78,570,956.88/x
  3. Step 3: Cross multiply
    140,449,584.96x = 193,820,711.76 × 78,570,956.88
  4. Step 4: Simplify right side
    140,449,584.96x = 15,228,678,786,145,868
  5. Step 5: Solve for x
    x = 15,228,678,786,145,868/140,449,584.96
  6. Step 6: Final answer
    x = 108,428,079.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.