Home / 217,281,292.80-325,921,939.20-115,244,620.80

Finding the Fourth Proportional to 217,281,292.80, 325,921,939.20 and 115,244,620.80

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Solution

The fourth proportional to 217,281,292.80, 325,921,939.20 and 115,244,620.80 is: 172,866,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,281,292.80 : 325,921,939.20 = 115,244,620.80 : x
  2. Step 2: Convert to fraction form
    217,281,292.80/325,921,939.20 = 115,244,620.80/x
  3. Step 3: Cross multiply
    217,281,292.80x = 325,921,939.20 × 115,244,620.80
  4. Step 4: Simplify right side
    217,281,292.80x = 37,560,750,293,504,656
  5. Step 5: Solve for x
    x = 37,560,750,293,504,656/217,281,292.80
  6. Step 6: Final answer
    x = 172,866,931.20

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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.