Home / 204,933,969.78-307,400,713.73-66,759,350.78

Finding the Fourth Proportional to 204,933,969.78, 307,400,713.73 and 66,759,350.78

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Solution

The fourth proportional to 204,933,969.78, 307,400,713.73 and 66,759,350.78 is: 100,138,947.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,933,969.78 : 307,400,713.73 = 66,759,350.78 : x
  2. Step 2: Convert to fraction form
    204,933,969.78/307,400,713.73 = 66,759,350.78/x
  3. Step 3: Cross multiply
    204,933,969.78x = 307,400,713.73 × 66,759,350.78
  4. Step 4: Simplify right side
    204,933,969.78x = 20,521,872,077,923,432
  5. Step 5: Solve for x
    x = 20,521,872,077,923,432/204,933,969.78
  6. Step 6: Final answer
    x = 100,138,947.68

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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.