Home / 256,608,091.20-384,912,136.80-202,188,532.80

Finding the Fourth Proportional to 256,608,091.20, 384,912,136.80 and 202,188,532.80

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Solution

The fourth proportional to 256,608,091.20, 384,912,136.80 and 202,188,532.80 is: 303,282,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,608,091.20 : 384,912,136.80 = 202,188,532.80 : x
  2. Step 2: Convert to fraction form
    256,608,091.20/384,912,136.80 = 202,188,532.80/x
  3. Step 3: Cross multiply
    256,608,091.20x = 384,912,136.80 × 202,188,532.80
  4. Step 4: Simplify right side
    256,608,091.20x = 77,824,820,196,504,896
  5. Step 5: Solve for x
    x = 77,824,820,196,504,896/256,608,091.20
  6. Step 6: Final answer
    x = 303,282,799.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.