Home / 11,856,821.12-17,809,039.20-7,073,855.36

Finding the Fourth Proportional to 11,856,821.12, 17,809,039.20 and 7,073,855.36

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Solution

The fourth proportional to 11,856,821.12, 17,809,039.20 and 7,073,855.36 is: 10,624,986.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,856,821.12 : 17,809,039.20 = 7,073,855.36 : x
  2. Step 2: Convert to fraction form
    11,856,821.12/17,809,039.20 = 7,073,855.36/x
  3. Step 3: Cross multiply
    11,856,821.12x = 17,809,039.20 × 7,073,855.36
  4. Step 4: Simplify right side
    11,856,821.12x = 125,978,567,401,370.11
  5. Step 5: Solve for x
    x = 125,978,567,401,370.11/11,856,821.12
  6. Step 6: Final answer
    x = 10,624,986.76

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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.