Home / 21,191,204.10-29,234,918.61-13,336,790.43

Finding the Fourth Proportional to 21,191,204.10, 29,234,918.61 and 13,336,790.43

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Solution

The fourth proportional to 21,191,204.10, 29,234,918.61 and 13,336,790.43 is: 18,399,142.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191,204.10 : 29,234,918.61 = 13,336,790.43 : x
  2. Step 2: Convert to fraction form
    21,191,204.10/29,234,918.61 = 13,336,790.43/x
  3. Step 3: Cross multiply
    21,191,204.10x = 29,234,918.61 × 13,336,790.43
  4. Step 4: Simplify right side
    21,191,204.10x = 389,899,982,739,676.88
  5. Step 5: Solve for x
    x = 389,899,982,739,676.88/21,191,204.10
  6. Step 6: Final answer
    x = 18,399,142.44

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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.