Home / 21,241,026-29,309,993.78-13,397,575.66

Finding the Fourth Proportional to 21,241,026, 29,309,993.78 and 13,397,575.66

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Solution

The fourth proportional to 21,241,026, 29,309,993.78 and 13,397,575.66 is: 18,487,000.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241,026 : 29,309,993.78 = 13,397,575.66 : x
  2. Step 2: Convert to fraction form
    21,241,026/29,309,993.78 = 13,397,575.66/x
  3. Step 3: Cross multiply
    21,241,026x = 29,309,993.78 × 13,397,575.66
  4. Step 4: Simplify right side
    21,241,026x = 392,682,859,121,416.56
  5. Step 5: Solve for x
    x = 392,682,859,121,416.56/21,241,026
  6. Step 6: Final answer
    x = 18,487,000.54

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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.