Home / 141,479,140.20-195,239,835.54-78,754,243.56

Finding the Fourth Proportional to 141,479,140.20, 195,239,835.54 and 78,754,243.56

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Solution

The fourth proportional to 141,479,140.20, 195,239,835.54 and 78,754,243.56 is: 108,680,089.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,479,140.20 : 195,239,835.54 = 78,754,243.56 : x
  2. Step 2: Convert to fraction form
    141,479,140.20/195,239,835.54 = 78,754,243.56/x
  3. Step 3: Cross multiply
    141,479,140.20x = 195,239,835.54 × 78,754,243.56
  4. Step 4: Simplify right side
    141,479,140.20x = 15,375,965,560,731,504
  5. Step 5: Solve for x
    x = 15,375,965,560,731,504/141,479,140.20
  6. Step 6: Final answer
    x = 108,680,089.09

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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.