Home / 805,101,338.20-1,207,652,007.30-345,086,008.60

Finding the Fourth Proportional to 805,101,338.20, 1,207,652,007.30 and 345,086,008.60

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Solution

The fourth proportional to 805,101,338.20, 1,207,652,007.30 and 345,086,008.60 is: 517,629,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,101,338.20 : 1,207,652,007.30 = 345,086,008.60 : x
  2. Step 2: Convert to fraction form
    805,101,338.20/1,207,652,007.30 = 345,086,008.60/x
  3. Step 3: Cross multiply
    805,101,338.20x = 1,207,652,007.30 × 345,086,008.60
  4. Step 4: Simplify right side
    805,101,338.20x = 416,743,810,976,935,104
  5. Step 5: Solve for x
    x = 416,743,810,976,935,104/805,101,338.20
  6. Step 6: Final answer
    x = 517,629,012.90

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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.