Home / 21,480,748.31-29,644,083.69-11,691,900.34

Finding the Fourth Proportional to 21,480,748.31, 29,644,083.69 and 11,691,900.34

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Solution

The fourth proportional to 21,480,748.31, 29,644,083.69 and 11,691,900.34 is: 16,135,176.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,480,748.31 : 29,644,083.69 = 11,691,900.34 : x
  2. Step 2: Convert to fraction form
    21,480,748.31/29,644,083.69 = 11,691,900.34/x
  3. Step 3: Cross multiply
    21,480,748.31x = 29,644,083.69 × 11,691,900.34
  4. Step 4: Simplify right side
    21,480,748.31x = 346,595,672,099,989.25
  5. Step 5: Solve for x
    x = 346,595,672,099,989.25/21,480,748.31
  6. Step 6: Final answer
    x = 16,135,176.81

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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.