Home / 14,503,863.72-20,015,371.82-7,978,161.88

Finding the Fourth Proportional to 14,503,863.72, 20,015,371.82 and 7,978,161.88

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Solution

The fourth proportional to 14,503,863.72, 20,015,371.82 and 7,978,161.88 is: 11,009,885.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,503,863.72 : 20,015,371.82 = 7,978,161.88 : x
  2. Step 2: Convert to fraction form
    14,503,863.72/20,015,371.82 = 7,978,161.88/x
  3. Step 3: Cross multiply
    14,503,863.72x = 20,015,371.82 × 7,978,161.88
  4. Step 4: Simplify right side
    14,503,863.72x = 159,685,876,468,350.22
  5. Step 5: Solve for x
    x = 159,685,876,468,350.22/14,503,863.72
  6. Step 6: Final answer
    x = 11,009,885.33

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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.