Home / 20,436,993.76-28,203,732.44-11,145,072.34

Finding the Fourth Proportional to 20,436,993.76, 28,203,732.44 and 11,145,072.34

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Solution

The fourth proportional to 20,436,993.76, 28,203,732.44 and 11,145,072.34 is: 15,380,571.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,436,993.76 : 28,203,732.44 = 11,145,072.34 : x
  2. Step 2: Convert to fraction form
    20,436,993.76/28,203,732.44 = 11,145,072.34/x
  3. Step 3: Cross multiply
    20,436,993.76x = 28,203,732.44 × 11,145,072.34
  4. Step 4: Simplify right side
    20,436,993.76x = 314,332,638,301,804.75
  5. Step 5: Solve for x
    x = 314,332,638,301,804.75/20,436,993.76
  6. Step 6: Final answer
    x = 15,380,571.23

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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.