Home / 72,591,348.60-108,874,581.30-27,129,742.20

Finding the Fourth Proportional to 72,591,348.60, 108,874,581.30 and 27,129,742.20

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Solution

The fourth proportional to 72,591,348.60, 108,874,581.30 and 27,129,742.20 is: 40,689,963.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,591,348.60 : 108,874,581.30 = 27,129,742.20 : x
  2. Step 2: Convert to fraction form
    72,591,348.60/108,874,581.30 = 27,129,742.20/x
  3. Step 3: Cross multiply
    72,591,348.60x = 108,874,581.30 × 27,129,742.20
  4. Step 4: Simplify right side
    72,591,348.60x = 2,953,739,322,801,940.50
  5. Step 5: Solve for x
    x = 2,953,739,322,801,940.50/72,591,348.60
  6. Step 6: Final answer
    x = 40,689,963.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.