Home / 1,131,375,668.97-1,561,434,343.34-685,325,944.56

Finding the Fourth Proportional to 1,131,375,668.97, 1,561,434,343.34 and 685,325,944.56

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Solution

The fourth proportional to 1,131,375,668.97, 1,561,434,343.34 and 685,325,944.56 is: 945,832,136.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,375,668.97 : 1,561,434,343.34 = 685,325,944.56 : x
  2. Step 2: Convert to fraction form
    1,131,375,668.97/1,561,434,343.34 = 685,325,944.56/x
  3. Step 3: Cross multiply
    1,131,375,668.97x = 1,561,434,343.34 × 685,325,944.56
  4. Step 4: Simplify right side
    1,131,375,668.97x = 1,070,091,466,217,908,736
  5. Step 5: Solve for x
    x = 1,070,091,466,217,908,736/1,131,375,668.97
  6. Step 6: Final answer
    x = 945,832,136.55

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