Home / 815,997,104.78-1,224,235,802.07-263,289,164.56

Finding the Fourth Proportional to 815,997,104.78, 1,224,235,802.07 and 263,289,164.56

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Solution

The fourth proportional to 815,997,104.78, 1,224,235,802.07 and 263,289,164.56 is: 395,011,231.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,997,104.78 : 1,224,235,802.07 = 263,289,164.56 : x
  2. Step 2: Convert to fraction form
    815,997,104.78/1,224,235,802.07 = 263,289,164.56/x
  3. Step 3: Cross multiply
    815,997,104.78x = 1,224,235,802.07 × 263,289,164.56
  4. Step 4: Simplify right side
    815,997,104.78x = 322,328,021,550,135,360
  5. Step 5: Solve for x
    x = 322,328,021,550,135,360/815,997,104.78
  6. Step 6: Final answer
    x = 395,011,231.86

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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.