Home / 21,318,611.42-29,419,914.87-11,529,245.85

Finding the Fourth Proportional to 21,318,611.42, 29,419,914.87 and 11,529,245.85

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Solution

The fourth proportional to 21,318,611.42, 29,419,914.87 and 11,529,245.85 is: 15,910,484.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318,611.42 : 29,419,914.87 = 11,529,245.85 : x
  2. Step 2: Convert to fraction form
    21,318,611.42/29,419,914.87 = 11,529,245.85/x
  3. Step 3: Cross multiply
    21,318,611.42x = 29,419,914.87 × 11,529,245.85
  4. Step 4: Simplify right side
    21,318,611.42x = 339,189,431,422,300.81
  5. Step 5: Solve for x
    x = 339,189,431,422,300.81/21,318,611.42
  6. Step 6: Final answer
    x = 15,910,484.26

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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.