Home / 12,867,791.28-19,295,800.83-7,682,754.48

Finding the Fourth Proportional to 12,867,791.28, 19,295,800.83 and 7,682,754.48

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Solution

The fourth proportional to 12,867,791.28, 19,295,800.83 and 7,682,754.48 is: 11,520,617.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867,791.28 : 19,295,800.83 = 7,682,754.48 : x
  2. Step 2: Convert to fraction form
    12,867,791.28/19,295,800.83 = 7,682,754.48/x
  3. Step 3: Cross multiply
    12,867,791.28x = 19,295,800.83 × 7,682,754.48
  4. Step 4: Simplify right side
    12,867,791.28x = 148,244,900,271,870.22
  5. Step 5: Solve for x
    x = 148,244,900,271,870.22/12,867,791.28
  6. Step 6: Final answer
    x = 11,520,617.41

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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.