Home / 25,861,205.54-35,659,469.90-21,136,940.69

Finding the Fourth Proportional to 25,861,205.54, 35,659,469.90 and 21,136,940.69

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Solution

The fourth proportional to 25,861,205.54, 35,659,469.90 and 21,136,940.69 is: 29,145,280.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,861,205.54 : 35,659,469.90 = 21,136,940.69 : x
  2. Step 2: Convert to fraction form
    25,861,205.54/35,659,469.90 = 21,136,940.69/x
  3. Step 3: Cross multiply
    25,861,205.54x = 35,659,469.90 × 21,136,940.69
  4. Step 4: Simplify right side
    25,861,205.54x = 753,732,100,187,685.25
  5. Step 5: Solve for x
    x = 753,732,100,187,685.25/25,861,205.54
  6. Step 6: Final answer
    x = 29,145,280.91

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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.