Home / 21,987,983.36-30,336,542.72-12,694,333.44

Finding the Fourth Proportional to 21,987,983.36, 30,336,542.72 and 12,694,333.44

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Solution

The fourth proportional to 21,987,983.36, 30,336,542.72 and 12,694,333.44 is: 17,514,211.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987,983.36 : 30,336,542.72 = 12,694,333.44 : x
  2. Step 2: Convert to fraction form
    21,987,983.36/30,336,542.72 = 12,694,333.44/x
  3. Step 3: Cross multiply
    21,987,983.36x = 30,336,542.72 × 12,694,333.44
  4. Step 4: Simplify right side
    21,987,983.36x = 385,102,188,704,484.50
  5. Step 5: Solve for x
    x = 385,102,188,704,484.50/21,987,983.36
  6. Step 6: Final answer
    x = 17,514,211.39

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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.