Home / 21,318,615.92-29,419,921.08-11,529,250.35

Finding the Fourth Proportional to 21,318,615.92, 29,419,921.08 and 11,529,250.35

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Solution

The fourth proportional to 21,318,615.92, 29,419,921.08 and 11,529,250.35 is: 15,910,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318,615.92 : 29,419,921.08 = 11,529,250.35 : x
  2. Step 2: Convert to fraction form
    21,318,615.92/29,419,921.08 = 11,529,250.35/x
  3. Step 3: Cross multiply
    21,318,615.92x = 29,419,921.08 × 11,529,250.35
  4. Step 4: Simplify right side
    21,318,615.92x = 339,189,635,408,562.38
  5. Step 5: Solve for x
    x = 339,189,635,408,562.38/21,318,615.92
  6. Step 6: Final answer
    x = 15,910,490.47

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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.