Home / 220,212,320.80-329,864,362.80-129,059,629.60

Finding the Fourth Proportional to 220,212,320.80, 329,864,362.80 and 129,059,629.60

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Solution

The fourth proportional to 220,212,320.80, 329,864,362.80 and 129,059,629.60 is: 193,323,299.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,212,320.80 : 329,864,362.80 = 129,059,629.60 : x
  2. Step 2: Convert to fraction form
    220,212,320.80/329,864,362.80 = 129,059,629.60/x
  3. Step 3: Cross multiply
    220,212,320.80x = 329,864,362.80 × 129,059,629.60
  4. Step 4: Simplify right side
    220,212,320.80x = 42,572,172,481,208,016
  5. Step 5: Solve for x
    x = 42,572,172,481,208,016/220,212,320.80
  6. Step 6: Final answer
    x = 193,323,299.65

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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.