Home / 1,991,613,163.03-2,987,378,720.52-663,737,633.52

Finding the Fourth Proportional to 1,991,613,163.03, 2,987,378,720.52 and 663,737,633.52

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Solution

The fourth proportional to 1,991,613,163.03, 2,987,378,720.52 and 663,737,633.52 is: 995,592,778.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,613,163.03 : 2,987,378,720.52 = 663,737,633.52 : x
  2. Step 2: Convert to fraction form
    1,991,613,163.03/2,987,378,720.52 = 663,737,633.52/x
  3. Step 3: Cross multiply
    1,991,613,163.03x = 2,987,378,720.52 × 663,737,633.52
  4. Step 4: Simplify right side
    1,991,613,163.03x = 1,982,835,682,392,791,296
  5. Step 5: Solve for x
    x = 1,982,835,682,392,791,296/1,991,613,163.03
  6. Step 6: Final answer
    x = 995,592,778.36

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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.