Home / 394,192,752.39-543,989,522.43-217,992,602.70

Finding the Fourth Proportional to 394,192,752.39, 543,989,522.43 and 217,992,602.70

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Solution

The fourth proportional to 394,192,752.39, 543,989,522.43 and 217,992,602.70 is: 300,831,740.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,192,752.39 : 543,989,522.43 = 217,992,602.70 : x
  2. Step 2: Convert to fraction form
    394,192,752.39/543,989,522.43 = 217,992,602.70/x
  3. Step 3: Cross multiply
    394,192,752.39x = 543,989,522.43 × 217,992,602.70
  4. Step 4: Simplify right side
    394,192,752.39x = 118,585,691,836,045,712
  5. Step 5: Solve for x
    x = 118,585,691,836,045,712/394,192,752.39
  6. Step 6: Final answer
    x = 300,831,740.61

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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.