Home / 20,414,804.89-28,172,415.27-11,247,447.64

Finding the Fourth Proportional to 20,414,804.89, 28,172,415.27 and 11,247,447.64

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Solution

The fourth proportional to 20,414,804.89, 28,172,415.27 and 11,247,447.64 is: 15,521,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414,804.89 : 28,172,415.27 = 11,247,447.64 : x
  2. Step 2: Convert to fraction form
    20,414,804.89/28,172,415.27 = 11,247,447.64/x
  3. Step 3: Cross multiply
    20,414,804.89x = 28,172,415.27 × 11,247,447.64
  4. Step 4: Simplify right side
    20,414,804.89x = 316,867,765,641,661.50
  5. Step 5: Solve for x
    x = 316,867,765,641,661.50/20,414,804.89
  6. Step 6: Final answer
    x = 15,521,469.22

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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.