Home / 20,517,996.30-28,314,621.99-11,225,478.54

Finding the Fourth Proportional to 20,517,996.30, 28,314,621.99 and 11,225,478.54

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Solution

The fourth proportional to 20,517,996.30, 28,314,621.99 and 11,225,478.54 is: 15,491,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517,996.30 : 28,314,621.99 = 11,225,478.54 : x
  2. Step 2: Convert to fraction form
    20,517,996.30/28,314,621.99 = 11,225,478.54/x
  3. Step 3: Cross multiply
    20,517,996.30x = 28,314,621.99 × 11,225,478.54
  4. Step 4: Simplify right side
    20,517,996.30x = 317,845,181,516,957.06
  5. Step 5: Solve for x
    x = 317,845,181,516,957.06/20,517,996.30
  6. Step 6: Final answer
    x = 15,491,043.90

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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.