Home / 39,198,147.12-54,093,159.72-21,794,357.52

Finding the Fourth Proportional to 39,198,147.12, 54,093,159.72 and 21,794,357.52

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Solution

The fourth proportional to 39,198,147.12, 54,093,159.72 and 21,794,357.52 is: 30,076,055.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,198,147.12 : 54,093,159.72 = 21,794,357.52 : x
  2. Step 2: Convert to fraction form
    39,198,147.12/54,093,159.72 = 21,794,357.52/x
  3. Step 3: Cross multiply
    39,198,147.12x = 54,093,159.72 × 21,794,357.52
  4. Step 4: Simplify right side
    39,198,147.12x = 1,178,925,662,324,143
  5. Step 5: Solve for x
    x = 1,178,925,662,324,143/39,198,147.12
  6. Step 6: Final answer
    x = 30,076,055.86

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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.