Home / 39,190,393.71-54,084,589.26-21,787,029.78

Finding the Fourth Proportional to 39,190,393.71, 54,084,589.26 and 21,787,029.78

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Solution

The fourth proportional to 39,190,393.71, 54,084,589.26 and 21,787,029.78 is: 30,067,127.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,190,393.71 : 54,084,589.26 = 21,787,029.78 : x
  2. Step 2: Convert to fraction form
    39,190,393.71/54,084,589.26 = 21,787,029.78/x
  3. Step 3: Cross multiply
    39,190,393.71x = 54,084,589.26 × 21,787,029.78
  4. Step 4: Simplify right side
    39,190,393.71x = 1,178,342,556,846,688.25
  5. Step 5: Solve for x
    x = 1,178,342,556,846,688.25/39,190,393.71
  6. Step 6: Final answer
    x = 30,067,127.31

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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.