Home / 21,100,996.05-29,120,939.28-11,809,497.39

Finding the Fourth Proportional to 21,100,996.05, 29,120,939.28 and 11,809,497.39

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Solution

The fourth proportional to 21,100,996.05, 29,120,939.28 and 11,809,497.39 is: 16,297,982.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,100,996.05 : 29,120,939.28 = 11,809,497.39 : x
  2. Step 2: Convert to fraction form
    21,100,996.05/29,120,939.28 = 11,809,497.39/x
  3. Step 3: Cross multiply
    21,100,996.05x = 29,120,939.28 × 11,809,497.39
  4. Step 4: Simplify right side
    21,100,996.05x = 343,903,656,421,508.50
  5. Step 5: Solve for x
    x = 343,903,656,421,508.50/21,100,996.05
  6. Step 6: Final answer
    x = 16,297,982.12

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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.