Home / 87,198,643.45-120,339,563.39-48,040,412.10

Finding the Fourth Proportional to 87,198,643.45, 120,339,563.39 and 48,040,412.10

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Solution

The fourth proportional to 87,198,643.45, 120,339,563.39 and 48,040,412.10 is: 66,298,763.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,198,643.45 : 120,339,563.39 = 48,040,412.10 : x
  2. Step 2: Convert to fraction form
    87,198,643.45/120,339,563.39 = 48,040,412.10/x
  3. Step 3: Cross multiply
    87,198,643.45x = 120,339,563.39 × 48,040,412.10
  4. Step 4: Simplify right side
    87,198,643.45x = 5,781,162,217,189,673
  5. Step 5: Solve for x
    x = 5,781,162,217,189,673/87,198,643.45
  6. Step 6: Final answer
    x = 66,298,763.24

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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.