Home / 87,493,072.91-131,147,936.07-40,768,036.31

Finding the Fourth Proportional to 87,493,072.91, 131,147,936.07 and 40,768,036.31

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Solution

The fourth proportional to 87,493,072.91, 131,147,936.07 and 40,768,036.31 is: 61,109,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,493,072.91 : 131,147,936.07 = 40,768,036.31 : x
  2. Step 2: Convert to fraction form
    87,493,072.91/131,147,936.07 = 40,768,036.31/x
  3. Step 3: Cross multiply
    87,493,072.91x = 131,147,936.07 × 40,768,036.31
  4. Step 4: Simplify right side
    87,493,072.91x = 5,346,643,820,087,832
  5. Step 5: Solve for x
    x = 5,346,643,820,087,832/87,493,072.91
  6. Step 6: Final answer
    x = 61,109,338.63

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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.