Home / 394,634,991.98-591,683,438.36-200,171,428.04

Finding the Fourth Proportional to 394,634,991.98, 591,683,438.36 and 200,171,428.04

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Solution

The fourth proportional to 394,634,991.98, 591,683,438.36 and 200,171,428.04 is: 300,120,671.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,634,991.98 : 591,683,438.36 = 200,171,428.04 : x
  2. Step 2: Convert to fraction form
    394,634,991.98/591,683,438.36 = 200,171,428.04/x
  3. Step 3: Cross multiply
    394,634,991.98x = 591,683,438.36 × 200,171,428.04
  4. Step 4: Simplify right side
    394,634,991.98x = 118,438,118,804,138,512
  5. Step 5: Solve for x
    x = 118,438,118,804,138,512/394,634,991.98
  6. Step 6: Final answer
    x = 300,120,671.53

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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.