Home / 86,991,238.92-120,066,175.98-55,180,833.24

Finding the Fourth Proportional to 86,991,238.92, 120,066,175.98 and 55,180,833.24

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Solution

The fourth proportional to 86,991,238.92, 120,066,175.98 and 55,180,833.24 is: 76,161,136.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,991,238.92 : 120,066,175.98 = 55,180,833.24 : x
  2. Step 2: Convert to fraction form
    86,991,238.92/120,066,175.98 = 55,180,833.24/x
  3. Step 3: Cross multiply
    86,991,238.92x = 120,066,175.98 × 55,180,833.24
  4. Step 4: Simplify right side
    86,991,238.92x = 6,625,351,634,516,874
  5. Step 5: Solve for x
    x = 6,625,351,634,516,874/86,991,238.92
  6. Step 6: Final answer
    x = 76,161,136.65

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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.