Home / 393,727,170.98-543,375,261.69-217,530,553.70

Finding the Fourth Proportional to 393,727,170.98, 543,375,261.69 and 217,530,553.70

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Solution

The fourth proportional to 393,727,170.98, 543,375,261.69 and 217,530,553.70 is: 300,209,714.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,727,170.98 : 543,375,261.69 = 217,530,553.70 : x
  2. Step 2: Convert to fraction form
    393,727,170.98/543,375,261.69 = 217,530,553.70/x
  3. Step 3: Cross multiply
    393,727,170.98x = 543,375,261.69 × 217,530,553.70
  4. Step 4: Simplify right side
    393,727,170.98x = 118,200,721,542,308,096
  5. Step 5: Solve for x
    x = 118,200,721,542,308,096/393,727,170.98
  6. Step 6: Final answer
    x = 300,209,714.38

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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.