Home / 427,987,524.80-641,981,287.20-274,932,516.80

Finding the Fourth Proportional to 427,987,524.80, 641,981,287.20 and 274,932,516.80

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Solution

The fourth proportional to 427,987,524.80, 641,981,287.20 and 274,932,516.80 is: 412,398,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,987,524.80 : 641,981,287.20 = 274,932,516.80 : x
  2. Step 2: Convert to fraction form
    427,987,524.80/641,981,287.20 = 274,932,516.80/x
  3. Step 3: Cross multiply
    427,987,524.80x = 641,981,287.20 × 274,932,516.80
  4. Step 4: Simplify right side
    427,987,524.80x = 176,501,531,028,399,648
  5. Step 5: Solve for x
    x = 176,501,531,028,399,648/427,987,524.80
  6. Step 6: Final answer
    x = 412,398,775.20

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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.