Home / 21,035,629.53-29,029,196.75-11,869,125.21

Finding the Fourth Proportional to 21,035,629.53, 29,029,196.75 and 11,869,125.21

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Solution

The fourth proportional to 21,035,629.53, 29,029,196.75 and 11,869,125.21 is: 16,379,408.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035,629.53 : 29,029,196.75 = 11,869,125.21 : x
  2. Step 2: Convert to fraction form
    21,035,629.53/29,029,196.75 = 11,869,125.21/x
  3. Step 3: Cross multiply
    21,035,629.53x = 29,029,196.75 × 11,869,125.21
  4. Step 4: Simplify right side
    21,035,629.53x = 344,551,170,912,129.50
  5. Step 5: Solve for x
    x = 344,551,170,912,129.50/21,035,629.53
  6. Step 6: Final answer
    x = 16,379,408.58

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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.