Home / 81,661,805.20-122,463,216.60-41,258,861.20

Finding the Fourth Proportional to 81,661,805.20, 122,463,216.60 and 41,258,861.20

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Solution

The fourth proportional to 81,661,805.20, 122,463,216.60 and 41,258,861.20 is: 61,873,391.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,661,805.20 : 122,463,216.60 = 41,258,861.20 : x
  2. Step 2: Convert to fraction form
    81,661,805.20/122,463,216.60 = 41,258,861.20/x
  3. Step 3: Cross multiply
    81,661,805.20x = 122,463,216.60 × 41,258,861.20
  4. Step 4: Simplify right side
    81,661,805.20x = 5,052,692,855,804,936
  5. Step 5: Solve for x
    x = 5,052,692,855,804,936/81,661,805.20
  6. Step 6: Final answer
    x = 61,873,391.65

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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.