Home / 20,996,859.32-28,975,666.22-11,339,067.32

Finding the Fourth Proportional to 20,996,859.32, 28,975,666.22 and 11,339,067.32

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Solution

The fourth proportional to 20,996,859.32, 28,975,666.22 and 11,339,067.32 is: 15,647,913.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,859.32 : 28,975,666.22 = 11,339,067.32 : x
  2. Step 2: Convert to fraction form
    20,996,859.32/28,975,666.22 = 11,339,067.32/x
  3. Step 3: Cross multiply
    20,996,859.32x = 28,975,666.22 × 11,339,067.32
  4. Step 4: Simplify right side
    20,996,859.32x = 328,557,029,910,429.94
  5. Step 5: Solve for x
    x = 328,557,029,910,429.94/20,996,859.32
  6. Step 6: Final answer
    x = 15,647,913.10

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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.