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Finding the Fourth Proportional to 26,507,163.90, 39,760,745.85 and 19,704,719.10

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Solution

The fourth proportional to 26,507,163.90, 39,760,745.85 and 19,704,719.10 is: 29,557,078.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,507,163.90 : 39,760,745.85 = 19,704,719.10 : x
  2. Step 2: Convert to fraction form
    26,507,163.90/39,760,745.85 = 19,704,719.10/x
  3. Step 3: Cross multiply
    26,507,163.90x = 39,760,745.85 × 19,704,719.10
  4. Step 4: Simplify right side
    26,507,163.90x = 783,474,328,180,740.88
  5. Step 5: Solve for x
    x = 783,474,328,180,740.88/26,507,163.90
  6. Step 6: Final answer
    x = 29,557,078.65

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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.