Home / 19,339,824.80-29,020,234.80-7,981,421.60

Finding the Fourth Proportional to 19,339,824.80, 29,020,234.80 and 7,981,421.60

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Solution

The fourth proportional to 19,339,824.80, 29,020,234.80 and 7,981,421.60 is: 11,976,464.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,339,824.80 : 29,020,234.80 = 7,981,421.60 : x
  2. Step 2: Convert to fraction form
    19,339,824.80/29,020,234.80 = 7,981,421.60/x
  3. Step 3: Cross multiply
    19,339,824.80x = 29,020,234.80 × 7,981,421.60
  4. Step 4: Simplify right side
    19,339,824.80x = 231,622,728,869,791.69
  5. Step 5: Solve for x
    x = 231,622,728,869,791.69/19,339,824.80
  6. Step 6: Final answer
    x = 11,976,464.69

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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.