Home / 39,270,470.36-54,192,732.54-21,629,034.20

Finding the Fourth Proportional to 39,270,470.36, 54,192,732.54 and 21,629,034.20

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Solution

The fourth proportional to 39,270,470.36, 54,192,732.54 and 21,629,034.20 is: 29,847,782.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,270,470.36 : 54,192,732.54 = 21,629,034.20 : x
  2. Step 2: Convert to fraction form
    39,270,470.36/54,192,732.54 = 21,629,034.20/x
  3. Step 3: Cross multiply
    39,270,470.36x = 54,192,732.54 × 21,629,034.20
  4. Step 4: Simplify right side
    39,270,470.36x = 1,172,136,465,499,112.75
  5. Step 5: Solve for x
    x = 1,172,136,465,499,112.75/39,270,470.36
  6. Step 6: Final answer
    x = 29,847,782.69

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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.