Home / 38,661,694.50-53,351,772.72-21,257,917.86

Finding the Fourth Proportional to 38,661,694.50, 53,351,772.72 and 21,257,917.86

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Solution

The fourth proportional to 38,661,694.50, 53,351,772.72 and 21,257,917.86 is: 29,335,175.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,661,694.50 : 53,351,772.72 = 21,257,917.86 : x
  2. Step 2: Convert to fraction form
    38,661,694.50/53,351,772.72 = 21,257,917.86/x
  3. Step 3: Cross multiply
    38,661,694.50x = 53,351,772.72 × 21,257,917.86
  4. Step 4: Simplify right side
    38,661,694.50x = 1,134,147,602,167,148.75
  5. Step 5: Solve for x
    x = 1,134,147,602,167,148.75/38,661,694.50
  6. Step 6: Final answer
    x = 29,335,175.73

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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.