Home / 394,022,429.40-590,979,989.70-102,912,317.40

Finding the Fourth Proportional to 394,022,429.40, 590,979,989.70 and 102,912,317.40

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Solution

The fourth proportional to 394,022,429.40, 590,979,989.70 and 102,912,317.40 is: 154,354,462.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,022,429.40 : 590,979,989.70 = 102,912,317.40 : x
  2. Step 2: Convert to fraction form
    394,022,429.40/590,979,989.70 = 102,912,317.40/x
  3. Step 3: Cross multiply
    394,022,429.40x = 590,979,989.70 × 102,912,317.40
  4. Step 4: Simplify right side
    394,022,429.40x = 60,819,120,277,055,136
  5. Step 5: Solve for x
    x = 60,819,120,277,055,136/394,022,429.40
  6. Step 6: Final answer
    x = 154,354,462.43

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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.