Home / 121,609,662.49-167,821,496.07-65,855,179.02

Finding the Fourth Proportional to 121,609,662.49, 167,821,496.07 and 65,855,179.02

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Solution

The fourth proportional to 121,609,662.49, 167,821,496.07 and 65,855,179.02 is: 90,880,234.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,609,662.49 : 167,821,496.07 = 65,855,179.02 : x
  2. Step 2: Convert to fraction form
    121,609,662.49/167,821,496.07 = 65,855,179.02/x
  3. Step 3: Cross multiply
    121,609,662.49x = 167,821,496.07 × 65,855,179.02
  4. Step 4: Simplify right side
    121,609,662.49x = 11,051,914,667,476,450
  5. Step 5: Solve for x
    x = 11,051,914,667,476,450/121,609,662.49
  6. Step 6: Final answer
    x = 90,880,234.69

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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.