Home / 27,658,236.78-38,167,366.48-15,268,064.20

Finding the Fourth Proportional to 27,658,236.78, 38,167,366.48 and 15,268,064.20

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Solution

The fourth proportional to 27,658,236.78, 38,167,366.48 and 15,268,064.20 is: 21,069,376.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,658,236.78 : 38,167,366.48 = 15,268,064.20 : x
  2. Step 2: Convert to fraction form
    27,658,236.78/38,167,366.48 = 15,268,064.20/x
  3. Step 3: Cross multiply
    27,658,236.78x = 38,167,366.48 × 15,268,064.20
  4. Step 4: Simplify right side
    27,658,236.78x = 582,741,801,761,568
  5. Step 5: Solve for x
    x = 582,741,801,761,568/27,658,236.78
  6. Step 6: Final answer
    x = 21,069,376.42

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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.