Home / 815,997,177.32-1,224,235,910.94-263,289,237.08

Finding the Fourth Proportional to 815,997,177.32, 1,224,235,910.94 and 263,289,237.08

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Solution

The fourth proportional to 815,997,177.32, 1,224,235,910.94 and 263,289,237.08 is: 395,011,340.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,997,177.32 : 1,224,235,910.94 = 263,289,237.08 : x
  2. Step 2: Convert to fraction form
    815,997,177.32/1,224,235,910.94 = 263,289,237.08/x
  3. Step 3: Cross multiply
    815,997,177.32x = 1,224,235,910.94 × 263,289,237.08
  4. Step 4: Simplify right side
    815,997,177.32x = 322,328,138,997,331,456
  5. Step 5: Solve for x
    x = 322,328,138,997,331,456/815,997,177.32
  6. Step 6: Final answer
    x = 395,011,340.67

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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.