Home / 348,422,766.77-480,836,105.62-189,645,221.03

Finding the Fourth Proportional to 348,422,766.77, 480,836,105.62 and 189,645,221.03

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Solution

The fourth proportional to 348,422,766.77, 480,836,105.62 and 189,645,221.03 is: 261,717,310.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,422,766.77 : 480,836,105.62 = 189,645,221.03 : x
  2. Step 2: Convert to fraction form
    348,422,766.77/480,836,105.62 = 189,645,221.03/x
  3. Step 3: Cross multiply
    348,422,766.77x = 480,836,105.62 × 189,645,221.03
  4. Step 4: Simplify right side
    348,422,766.77x = 91,188,269,526,631,040
  5. Step 5: Solve for x
    x = 91,188,269,526,631,040/348,422,766.77
  6. Step 6: Final answer
    x = 261,717,310.76

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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.