Home / 38,661,695.50-53,351,774.10-21,257,918.86

Finding the Fourth Proportional to 38,661,695.50, 53,351,774.10 and 21,257,918.86

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Solution

The fourth proportional to 38,661,695.50, 53,351,774.10 and 21,257,918.86 is: 29,335,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,661,695.50 : 53,351,774.10 = 21,257,918.86 : x
  2. Step 2: Convert to fraction form
    38,661,695.50/53,351,774.10 = 21,257,918.86/x
  3. Step 3: Cross multiply
    38,661,695.50x = 53,351,774.10 × 21,257,918.86
  4. Step 4: Simplify right side
    38,661,695.50x = 1,134,147,684,854,849.50
  5. Step 5: Solve for x
    x = 1,134,147,684,854,849.50/38,661,695.50
  6. Step 6: Final answer
    x = 29,335,177.11

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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.