Home / 28,004,640.80-41,913,649.20-20,306,400.80

Finding the Fourth Proportional to 28,004,640.80, 41,913,649.20 and 20,306,400.80

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Solution

The fourth proportional to 28,004,640.80, 41,913,649.20 and 20,306,400.80 is: 30,391,939.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,004,640.80 : 41,913,649.20 = 20,306,400.80 : x
  2. Step 2: Convert to fraction form
    28,004,640.80/41,913,649.20 = 20,306,400.80/x
  3. Step 3: Cross multiply
    28,004,640.80x = 41,913,649.20 × 20,306,400.80
  4. Step 4: Simplify right side
    28,004,640.80x = 851,115,359,645,799.50
  5. Step 5: Solve for x
    x = 851,115,359,645,799.50/28,004,640.80
  6. Step 6: Final answer
    x = 30,391,939.88

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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.