Home / 815,997,106.77-1,224,235,805.07-263,289,166.56

Finding the Fourth Proportional to 815,997,106.77, 1,224,235,805.07 and 263,289,166.56

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Solution

The fourth proportional to 815,997,106.77, 1,224,235,805.07 and 263,289,166.56 is: 395,011,234.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,997,106.77 : 1,224,235,805.07 = 263,289,166.56 : x
  2. Step 2: Convert to fraction form
    815,997,106.77/1,224,235,805.07 = 263,289,166.56/x
  3. Step 3: Cross multiply
    815,997,106.77x = 1,224,235,805.07 × 263,289,166.56
  4. Step 4: Simplify right side
    815,997,106.77x = 322,328,024,789,790,912
  5. Step 5: Solve for x
    x = 322,328,024,789,790,912/815,997,106.77
  6. Step 6: Final answer
    x = 395,011,234.86

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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.