Home / 20,501,072.46-28,290,059.19-11,332,993.50

Finding the Fourth Proportional to 20,501,072.46, 28,290,059.19 and 11,332,993.50

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Solution

The fourth proportional to 20,501,072.46, 28,290,059.19 and 11,332,993.50 is: 15,638,745.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,072.46 : 28,290,059.19 = 11,332,993.50 : x
  2. Step 2: Convert to fraction form
    20,501,072.46/28,290,059.19 = 11,332,993.50/x
  3. Step 3: Cross multiply
    20,501,072.46x = 28,290,059.19 × 11,332,993.50
  4. Step 4: Simplify right side
    20,501,072.46x = 320,611,056,914,885.25
  5. Step 5: Solve for x
    x = 320,611,056,914,885.25/20,501,072.46
  6. Step 6: Final answer
    x = 15,638,745.61

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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.