Home / 394,192,635.11-543,989,361.15-217,992,485.83

Finding the Fourth Proportional to 394,192,635.11, 543,989,361.15 and 217,992,485.83

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Solution

The fourth proportional to 394,192,635.11, 543,989,361.15 and 217,992,485.83 is: 300,831,579.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,192,635.11 : 543,989,361.15 = 217,992,485.83 : x
  2. Step 2: Convert to fraction form
    394,192,635.11/543,989,361.15 = 217,992,485.83/x
  3. Step 3: Cross multiply
    394,192,635.11x = 543,989,361.15 × 217,992,485.83
  4. Step 4: Simplify right side
    394,192,635.11x = 118,585,593,098,352,208
  5. Step 5: Solve for x
    x = 118,585,593,098,352,208/394,192,635.11
  6. Step 6: Final answer
    x = 300,831,579.63

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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.