Home / 21,346,431.54-29,446,049.48-13,503,514.20

Finding the Fourth Proportional to 21,346,431.54, 29,446,049.48 and 13,503,514.20

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Solution

The fourth proportional to 21,346,431.54, 29,446,049.48 and 13,503,514.20 is: 18,627,242.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346,431.54 : 29,446,049.48 = 13,503,514.20 : x
  2. Step 2: Convert to fraction form
    21,346,431.54/29,446,049.48 = 13,503,514.20/x
  3. Step 3: Cross multiply
    21,346,431.54x = 29,446,049.48 × 13,503,514.20
  4. Step 4: Simplify right side
    21,346,431.54x = 397,625,147,287,082.62
  5. Step 5: Solve for x
    x = 397,625,147,287,082.62/21,346,431.54
  6. Step 6: Final answer
    x = 18,627,242.05

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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.