Home / 20,262,288.78-27,961,970.11-10,969,861.25

Finding the Fourth Proportional to 20,262,288.78, 27,961,970.11 and 10,969,861.25

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Solution

The fourth proportional to 20,262,288.78, 27,961,970.11 and 10,969,861.25 is: 15,138,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262,288.78 : 27,961,970.11 = 10,969,861.25 : x
  2. Step 2: Convert to fraction form
    20,262,288.78/27,961,970.11 = 10,969,861.25/x
  3. Step 3: Cross multiply
    20,262,288.78x = 27,961,970.11 × 10,969,861.25
  4. Step 4: Simplify right side
    20,262,288.78x = 306,738,932,425,827.50
  5. Step 5: Solve for x
    x = 306,738,932,425,827.50/20,262,288.78
  6. Step 6: Final answer
    x = 15,138,414.80

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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.