Home / 149,394,231.92-206,334,101.08-100,416,629.36

Finding the Fourth Proportional to 149,394,231.92, 206,334,101.08 and 100,416,629.36

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Solution

The fourth proportional to 149,394,231.92, 206,334,101.08 and 100,416,629.36 is: 138,689,256.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,394,231.92 : 206,334,101.08 = 100,416,629.36 : x
  2. Step 2: Convert to fraction form
    149,394,231.92/206,334,101.08 = 100,416,629.36/x
  3. Step 3: Cross multiply
    149,394,231.92x = 206,334,101.08 × 100,416,629.36
  4. Step 4: Simplify right side
    149,394,231.92x = 20,719,374,952,479,136
  5. Step 5: Solve for x
    x = 20,719,374,952,479,136/149,394,231.92
  6. Step 6: Final answer
    x = 138,689,256.51

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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.