Home / 120,299,517.21-166,008,888.41-65,294,192.73

Finding the Fourth Proportional to 120,299,517.21, 166,008,888.41 and 65,294,192.73

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Solution

The fourth proportional to 120,299,517.21, 166,008,888.41 and 65,294,192.73 is: 90,103,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,299,517.21 : 166,008,888.41 = 65,294,192.73 : x
  2. Step 2: Convert to fraction form
    120,299,517.21/166,008,888.41 = 65,294,192.73/x
  3. Step 3: Cross multiply
    120,299,517.21x = 166,008,888.41 × 65,294,192.73
  4. Step 4: Simplify right side
    120,299,517.21x = 10,839,416,354,409,132
  5. Step 5: Solve for x
    x = 10,839,416,354,409,132/120,299,517.21
  6. Step 6: Final answer
    x = 90,103,573.20

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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.