Home / 322,416,020.80-483,687,016.80-128,294,401.60

Finding the Fourth Proportional to 322,416,020.80, 483,687,016.80 and 128,294,401.60

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Solution

The fourth proportional to 322,416,020.80, 483,687,016.80 and 128,294,401.60 is: 192,466,665.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,416,020.80 : 483,687,016.80 = 128,294,401.60 : x
  2. Step 2: Convert to fraction form
    322,416,020.80/483,687,016.80 = 128,294,401.60/x
  3. Step 3: Cross multiply
    322,416,020.80x = 483,687,016.80 × 128,294,401.60
  4. Step 4: Simplify right side
    322,416,020.80x = 62,054,336,382,045,144
  5. Step 5: Solve for x
    x = 62,054,336,382,045,144/322,416,020.80
  6. Step 6: Final answer
    x = 192,466,665.36

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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.