Home / 815,997,174.56-1,224,235,906.78-263,289,234.34

Finding the Fourth Proportional to 815,997,174.56, 1,224,235,906.78 and 263,289,234.34

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Solution

The fourth proportional to 815,997,174.56, 1,224,235,906.78 and 263,289,234.34 is: 395,011,336.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,997,174.56 : 1,224,235,906.78 = 263,289,234.34 : x
  2. Step 2: Convert to fraction form
    815,997,174.56/1,224,235,906.78 = 263,289,234.34/x
  3. Step 3: Cross multiply
    815,997,174.56x = 1,224,235,906.78 × 263,289,234.34
  4. Step 4: Simplify right side
    815,997,174.56x = 322,328,134,547,641,792
  5. Step 5: Solve for x
    x = 322,328,134,547,641,792/815,997,174.56
  6. Step 6: Final answer
    x = 395,011,336.55

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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.