Home / 18,809,757.28-28,222,624.56-10,280,128.48

Finding the Fourth Proportional to 18,809,757.28, 28,222,624.56 and 10,280,128.48

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Solution

The fourth proportional to 18,809,757.28, 28,222,624.56 and 10,280,128.48 is: 15,424,558.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809,757.28 : 28,222,624.56 = 10,280,128.48 : x
  2. Step 2: Convert to fraction form
    18,809,757.28/28,222,624.56 = 10,280,128.48/x
  3. Step 3: Cross multiply
    18,809,757.28x = 28,222,624.56 × 10,280,128.48
  4. Step 4: Simplify right side
    18,809,757.28x = 290,132,206,519,603.44
  5. Step 5: Solve for x
    x = 290,132,206,519,603.44/18,809,757.28
  6. Step 6: Final answer
    x = 15,424,558.76

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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.