Home / 20,762,431.11-28,652,974.59-11,941,868.36

Finding the Fourth Proportional to 20,762,431.11, 28,652,974.59 and 11,941,868.36

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Solution

The fourth proportional to 20,762,431.11, 28,652,974.59 and 11,941,868.36 is: 16,480,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762,431.11 : 28,652,974.59 = 11,941,868.36 : x
  2. Step 2: Convert to fraction form
    20,762,431.11/28,652,974.59 = 11,941,868.36/x
  3. Step 3: Cross multiply
    20,762,431.11x = 28,652,974.59 × 11,941,868.36
  4. Step 4: Simplify right side
    20,762,431.11x = 342,170,050,631,446.44
  5. Step 5: Solve for x
    x = 342,170,050,631,446.44/20,762,431.11
  6. Step 6: Final answer
    x = 16,480,249.78

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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.