Home / 31,638,700.32-43,661,013.26-18,587,149

Finding the Fourth Proportional to 31,638,700.32, 43,661,013.26 and 18,587,149

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Solution

The fourth proportional to 31,638,700.32, 43,661,013.26 and 18,587,149 is: 25,650,034.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,638,700.32 : 43,661,013.26 = 18,587,149 : x
  2. Step 2: Convert to fraction form
    31,638,700.32/43,661,013.26 = 18,587,149/x
  3. Step 3: Cross multiply
    31,638,700.32x = 43,661,013.26 × 18,587,149
  4. Step 4: Simplify right side
    31,638,700.32x = 811,533,758,954,595.75
  5. Step 5: Solve for x
    x = 811,533,758,954,595.75/31,638,700.32
  6. Step 6: Final answer
    x = 25,650,034.63

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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.