Home / 21,800,786.60-30,083,646.18-13,093,785.64

Finding the Fourth Proportional to 21,800,786.60, 30,083,646.18 and 13,093,785.64

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Solution

The fourth proportional to 21,800,786.60, 30,083,646.18 and 13,093,785.64 is: 18,068,559.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800,786.60 : 30,083,646.18 = 13,093,785.64 : x
  2. Step 2: Convert to fraction form
    21,800,786.60/30,083,646.18 = 13,093,785.64/x
  3. Step 3: Cross multiply
    21,800,786.60x = 30,083,646.18 × 13,093,785.64
  4. Step 4: Simplify right side
    21,800,786.60x = 393,908,814,350,524.88
  5. Step 5: Solve for x
    x = 393,908,814,350,524.88/21,800,786.60
  6. Step 6: Final answer
    x = 18,068,559.71

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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.