Home / 394,634,845.48-591,683,218.62-200,171,281.54

Finding the Fourth Proportional to 394,634,845.48, 591,683,218.62 and 200,171,281.54

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Solution

The fourth proportional to 394,634,845.48, 591,683,218.62 and 200,171,281.54 is: 300,120,451.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,634,845.48 : 591,683,218.62 = 200,171,281.54 : x
  2. Step 2: Convert to fraction form
    394,634,845.48/591,683,218.62 = 200,171,281.54/x
  3. Step 3: Cross multiply
    394,634,845.48x = 591,683,218.62 × 200,171,281.54
  4. Step 4: Simplify right side
    394,634,845.48x = 118,437,988,136,877,392
  5. Step 5: Solve for x
    x = 118,437,988,136,877,392/394,634,845.48
  6. Step 6: Final answer
    x = 300,120,451.84

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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.