Home / 28,986,684.22-40,002,121.20-15,934,493.26

Finding the Fourth Proportional to 28,986,684.22, 40,002,121.20 and 15,934,493.26

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Solution

The fourth proportional to 28,986,684.22, 40,002,121.20 and 15,934,493.26 is: 21,989,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986,684.22 : 40,002,121.20 = 15,934,493.26 : x
  2. Step 2: Convert to fraction form
    28,986,684.22/40,002,121.20 = 15,934,493.26/x
  3. Step 3: Cross multiply
    28,986,684.22x = 40,002,121.20 × 15,934,493.26
  4. Step 4: Simplify right side
    28,986,684.22x = 637,413,530,647,103.12
  5. Step 5: Solve for x
    x = 637,413,530,647,103.12/28,986,684.22
  6. Step 6: Final answer
    x = 21,989,873.90

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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.