Home / 30,981,786.85-42,754,629.38-17,042,841.80

Finding the Fourth Proportional to 30,981,786.85, 42,754,629.38 and 17,042,841.80

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Solution

The fourth proportional to 30,981,786.85, 42,754,629.38 and 17,042,841.80 is: 23,518,991.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981,786.85 : 42,754,629.38 = 17,042,841.80 : x
  2. Step 2: Convert to fraction form
    30,981,786.85/42,754,629.38 = 17,042,841.80/x
  3. Step 3: Cross multiply
    30,981,786.85x = 42,754,629.38 × 17,042,841.80
  4. Step 4: Simplify right side
    30,981,786.85x = 728,660,384,938,675.38
  5. Step 5: Solve for x
    x = 728,660,384,938,675.38/30,981,786.85
  6. Step 6: Final answer
    x = 23,518,991.61

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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.