Home / 638,512,601.80-957,910,620.30-293,383,006.60

Finding the Fourth Proportional to 638,512,601.80, 957,910,620.30 and 293,383,006.60

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Solution

The fourth proportional to 638,512,601.80, 957,910,620.30 and 293,383,006.60 is: 440,139,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,512,601.80 : 957,910,620.30 = 293,383,006.60 : x
  2. Step 2: Convert to fraction form
    638,512,601.80/957,910,620.30 = 293,383,006.60/x
  3. Step 3: Cross multiply
    638,512,601.80x = 957,910,620.30 × 293,383,006.60
  4. Step 4: Simplify right side
    638,512,601.80x = 281,034,697,837,684,992
  5. Step 5: Solve for x
    x = 281,034,697,837,684,992/638,512,601.80
  6. Step 6: Final answer
    x = 440,139,626.13

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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.