Home / 144,612,668.72-199,564,865.78-78,532,704.29

Finding the Fourth Proportional to 144,612,668.72, 199,564,865.78 and 78,532,704.29

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Solution

The fourth proportional to 144,612,668.72, 199,564,865.78 and 78,532,704.29 is: 108,374,796.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,612,668.72 : 199,564,865.78 = 78,532,704.29 : x
  2. Step 2: Convert to fraction form
    144,612,668.72/199,564,865.78 = 78,532,704.29/x
  3. Step 3: Cross multiply
    144,612,668.72x = 199,564,865.78 × 78,532,704.29
  4. Step 4: Simplify right side
    144,612,668.72x = 15,672,368,591,080,530
  5. Step 5: Solve for x
    x = 15,672,368,591,080,530/144,612,668.72
  6. Step 6: Final answer
    x = 108,374,796.82

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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.