Home / 394,022,505.90-590,980,104.45-102,912,393.90

Finding the Fourth Proportional to 394,022,505.90, 590,980,104.45 and 102,912,393.90

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Solution

The fourth proportional to 394,022,505.90, 590,980,104.45 and 102,912,393.90 is: 154,354,577.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,022,505.90 : 590,980,104.45 = 102,912,393.90 : x
  2. Step 2: Convert to fraction form
    394,022,505.90/590,980,104.45 = 102,912,393.90/x
  3. Step 3: Cross multiply
    394,022,505.90x = 590,980,104.45 × 102,912,393.90
  4. Step 4: Simplify right side
    394,022,505.90x = 60,819,177,296,221,552
  5. Step 5: Solve for x
    x = 60,819,177,296,221,552/394,022,505.90
  6. Step 6: Final answer
    x = 154,354,577.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.