Home / 120,299,517.59-166,008,888.92-65,294,193.11

Finding the Fourth Proportional to 120,299,517.59, 166,008,888.92 and 65,294,193.11

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Solution

The fourth proportional to 120,299,517.59, 166,008,888.92 and 65,294,193.11 is: 90,103,573.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,299,517.59 : 166,008,888.92 = 65,294,193.11 : x
  2. Step 2: Convert to fraction form
    120,299,517.59/166,008,888.92 = 65,294,193.11/x
  3. Step 3: Cross multiply
    120,299,517.59x = 166,008,888.92 × 65,294,193.11
  4. Step 4: Simplify right side
    120,299,517.59x = 10,839,416,450,452,210
  5. Step 5: Solve for x
    x = 10,839,416,450,452,210/120,299,517.59
  6. Step 6: Final answer
    x = 90,103,573.71

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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.