Home / 72,431,144.80-108,646,717.20-49,472,893.60

Finding the Fourth Proportional to 72,431,144.80, 108,646,717.20 and 49,472,893.60

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Solution

The fourth proportional to 72,431,144.80, 108,646,717.20 and 49,472,893.60 is: 74,209,340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,431,144.80 : 108,646,717.20 = 49,472,893.60 : x
  2. Step 2: Convert to fraction form
    72,431,144.80/108,646,717.20 = 49,472,893.60/x
  3. Step 3: Cross multiply
    72,431,144.80x = 108,646,717.20 × 49,472,893.60
  4. Step 4: Simplify right side
    72,431,144.80x = 5,375,067,480,024,890
  5. Step 5: Solve for x
    x = 5,375,067,480,024,890/72,431,144.80
  6. Step 6: Final answer
    x = 74,209,340.40

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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.