Home / 81,483,917.22-122,225,908.77-20,074,270.50

Finding the Fourth Proportional to 81,483,917.22, 122,225,908.77 and 20,074,270.50

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Solution

The fourth proportional to 81,483,917.22, 122,225,908.77 and 20,074,270.50 is: 30,111,413.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,483,917.22 : 122,225,908.77 = 20,074,270.50 : x
  2. Step 2: Convert to fraction form
    81,483,917.22/122,225,908.77 = 20,074,270.50/x
  3. Step 3: Cross multiply
    81,483,917.22x = 122,225,908.77 × 20,074,270.50
  4. Step 4: Simplify right side
    81,483,917.22x = 2,453,595,954,757,302
  5. Step 5: Solve for x
    x = 2,453,595,954,757,302/81,483,917.22
  6. Step 6: Final answer
    x = 30,111,413.87

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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.