Home / 30,371,691.20-41,912,934.24-16,620,660.80

Finding the Fourth Proportional to 30,371,691.20, 41,912,934.24 and 16,620,660.80

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Solution

The fourth proportional to 30,371,691.20, 41,912,934.24 and 16,620,660.80 is: 22,936,512.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,371,691.20 : 41,912,934.24 = 16,620,660.80 : x
  2. Step 2: Convert to fraction form
    30,371,691.20/41,912,934.24 = 16,620,660.80/x
  3. Step 3: Cross multiply
    30,371,691.20x = 41,912,934.24 × 16,620,660.80
  4. Step 4: Simplify right side
    30,371,691.20x = 696,620,663,135,745.88
  5. Step 5: Solve for x
    x = 696,620,663,135,745.88/30,371,691.20
  6. Step 6: Final answer
    x = 22,936,512.11

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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.