Home / 320,992,860.80-481,170,426.60-148,168,247.60

Finding the Fourth Proportional to 320,992,860.80, 481,170,426.60 and 148,168,247.60

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Solution

The fourth proportional to 320,992,860.80, 481,170,426.60 and 148,168,247.60 is: 222,105,185.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,992,860.80 : 481,170,426.60 = 148,168,247.60 : x
  2. Step 2: Convert to fraction form
    320,992,860.80/481,170,426.60 = 148,168,247.60/x
  3. Step 3: Cross multiply
    320,992,860.80x = 481,170,426.60 × 148,168,247.60
  4. Step 4: Simplify right side
    320,992,860.80x = 71,294,178,906,266,424
  5. Step 5: Solve for x
    x = 71,294,178,906,266,424/320,992,860.80
  6. Step 6: Final answer
    x = 222,105,185.54

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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.