Home / 165,504,819.20-228,393,860.13-91,172,332.97

Finding the Fourth Proportional to 165,504,819.20, 228,393,860.13 and 91,172,332.97

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Solution

The fourth proportional to 165,504,819.20, 228,393,860.13 and 91,172,332.97 is: 125,816,282.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,504,819.20 : 228,393,860.13 = 91,172,332.97 : x
  2. Step 2: Convert to fraction form
    165,504,819.20/228,393,860.13 = 91,172,332.97/x
  3. Step 3: Cross multiply
    165,504,819.20x = 228,393,860.13 × 91,172,332.97
  4. Step 4: Simplify right side
    165,504,819.20x = 20,823,201,064,075,968
  5. Step 5: Solve for x
    x = 20,823,201,064,075,968/165,504,819.20
  6. Step 6: Final answer
    x = 125,816,282.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.