Home / 307,886,415-424,542,782.97-196,200,334.50

Finding the Fourth Proportional to 307,886,415, 424,542,782.97 and 196,200,334.50

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Solution

The fourth proportional to 307,886,415, 424,542,782.97 and 196,200,334.50 is: 270,539,497.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,886,415 : 424,542,782.97 = 196,200,334.50 : x
  2. Step 2: Convert to fraction form
    307,886,415/424,542,782.97 = 196,200,334.50/x
  3. Step 3: Cross multiply
    307,886,415x = 424,542,782.97 × 196,200,334.50
  4. Step 4: Simplify right side
    307,886,415x = 83,295,436,028,274,912
  5. Step 5: Solve for x
    x = 83,295,436,028,274,912/307,886,415
  6. Step 6: Final answer
    x = 270,539,497.59

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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.