Home / 825,912,288.92-1,139,782,453.12-449,593,145.19

Finding the Fourth Proportional to 825,912,288.92, 1,139,782,453.12 and 449,593,145.19

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Solution

The fourth proportional to 825,912,288.92, 1,139,782,453.12 and 449,593,145.19 is: 620,451,329.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,912,288.92 : 1,139,782,453.12 = 449,593,145.19 : x
  2. Step 2: Convert to fraction form
    825,912,288.92/1,139,782,453.12 = 449,593,145.19/x
  3. Step 3: Cross multiply
    825,912,288.92x = 1,139,782,453.12 × 449,593,145.19
  4. Step 4: Simplify right side
    825,912,288.92x = 512,438,377,930,594,496
  5. Step 5: Solve for x
    x = 512,438,377,930,594,496/825,912,288.92
  6. Step 6: Final answer
    x = 620,451,329.77

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Double scale
Find fourth proportional to 825,912,289.92, 1,139,782,454.50 and 449,593,146.19
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.