Home / 394,115,298.87-590,990,982.01-145,057,996.56

Finding the Fourth Proportional to 394,115,298.87, 590,990,982.01 and 145,057,996.56

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Solution

The fourth proportional to 394,115,298.87, 590,990,982.01 and 145,057,996.56 is: 217,520,020.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,115,298.87 : 590,990,982.01 = 145,057,996.56 : x
  2. Step 2: Convert to fraction form
    394,115,298.87/590,990,982.01 = 145,057,996.56/x
  3. Step 3: Cross multiply
    394,115,298.87x = 590,990,982.01 × 145,057,996.56
  4. Step 4: Simplify right side
    394,115,298.87x = 85,727,967,834,672,320
  5. Step 5: Solve for x
    x = 85,727,967,834,672,320/394,115,298.87
  6. Step 6: Final answer
    x = 217,520,020.36

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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.