Home / 79,758,829.80-119,638,244.70-68,279,704.20

Finding the Fourth Proportional to 79,758,829.80, 119,638,244.70 and 68,279,704.20

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Solution

The fourth proportional to 79,758,829.80, 119,638,244.70 and 68,279,704.20 is: 102,419,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,758,829.80 : 119,638,244.70 = 68,279,704.20 : x
  2. Step 2: Convert to fraction form
    79,758,829.80/119,638,244.70 = 68,279,704.20/x
  3. Step 3: Cross multiply
    79,758,829.80x = 119,638,244.70 × 68,279,704.20
  4. Step 4: Simplify right side
    79,758,829.80x = 8,168,863,959,123,218
  5. Step 5: Solve for x
    x = 8,168,863,959,123,218/79,758,829.80
  6. Step 6: Final answer
    x = 102,419,556.30

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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.