Home / 13,005,815.76-17,947,790.87-7,204,579.56

Finding the Fourth Proportional to 13,005,815.76, 17,947,790.87 and 7,204,579.56

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Solution

The fourth proportional to 13,005,815.76, 17,947,790.87 and 7,204,579.56 is: 9,942,189.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005,815.76 : 17,947,790.87 = 7,204,579.56 : x
  2. Step 2: Convert to fraction form
    13,005,815.76/17,947,790.87 = 7,204,579.56/x
  3. Step 3: Cross multiply
    13,005,815.76x = 17,947,790.87 × 7,204,579.56
  4. Step 4: Simplify right side
    13,005,815.76x = 129,306,287,213,133.70
  5. Step 5: Solve for x
    x = 129,306,287,213,133.70/13,005,815.76
  6. Step 6: Final answer
    x = 9,942,189.68

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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.