Home / 815,250,515.14-1,222,841,615.42-262,540,709.60

Finding the Fourth Proportional to 815,250,515.14, 1,222,841,615.42 and 262,540,709.60

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Solution

The fourth proportional to 815,250,515.14, 1,222,841,615.42 and 262,540,709.60 is: 393,800,064.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,250,515.14 : 1,222,841,615.42 = 262,540,709.60 : x
  2. Step 2: Convert to fraction form
    815,250,515.14/1,222,841,615.42 = 262,540,709.60/x
  3. Step 3: Cross multiply
    815,250,515.14x = 1,222,841,615.42 × 262,540,709.60
  4. Step 4: Simplify right side
    815,250,515.14x = 321,045,705,433,350,208
  5. Step 5: Solve for x
    x = 321,045,705,433,350,208/815,250,515.14
  6. Step 6: Final answer
    x = 393,800,064.48

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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.