Home / 128,324,604.60-192,463,287.30-79,715,467.80

Finding the Fourth Proportional to 128,324,604.60, 192,463,287.30 and 79,715,467.80

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Solution

The fourth proportional to 128,324,604.60, 192,463,287.30 and 79,715,467.80 is: 119,558,529.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,324,604.60 : 192,463,287.30 = 79,715,467.80 : x
  2. Step 2: Convert to fraction form
    128,324,604.60/192,463,287.30 = 79,715,467.80/x
  3. Step 3: Cross multiply
    128,324,604.60x = 192,463,287.30 × 79,715,467.80
  4. Step 4: Simplify right side
    128,324,604.60x = 15,342,300,981,445,300
  5. Step 5: Solve for x
    x = 15,342,300,981,445,300/128,324,604.60
  6. Step 6: Final answer
    x = 119,558,529.16

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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.