Home / 85,067,699.28-117,377,939.88-47,892,198.48

Finding the Fourth Proportional to 85,067,699.28, 117,377,939.88 and 47,892,198.48

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Solution

The fourth proportional to 85,067,699.28, 117,377,939.88 and 47,892,198.48 is: 66,082,515.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,067,699.28 : 117,377,939.88 = 47,892,198.48 : x
  2. Step 2: Convert to fraction form
    85,067,699.28/117,377,939.88 = 47,892,198.48/x
  3. Step 3: Cross multiply
    85,067,699.28x = 117,377,939.88 × 47,892,198.48
  4. Step 4: Simplify right side
    85,067,699.28x = 5,621,487,593,906,467
  5. Step 5: Solve for x
    x = 5,621,487,593,906,467/85,067,699.28
  6. Step 6: Final answer
    x = 66,082,515.94

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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.