Home / 171,072,147.20-256,608,220.80-80,204,921.60

Finding the Fourth Proportional to 171,072,147.20, 256,608,220.80 and 80,204,921.60

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Solution

The fourth proportional to 171,072,147.20, 256,608,220.80 and 80,204,921.60 is: 120,307,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,072,147.20 : 256,608,220.80 = 80,204,921.60 : x
  2. Step 2: Convert to fraction form
    171,072,147.20/256,608,220.80 = 80,204,921.60/x
  3. Step 3: Cross multiply
    171,072,147.20x = 256,608,220.80 × 80,204,921.60
  4. Step 4: Simplify right side
    171,072,147.20x = 20,581,242,231,179,488
  5. Step 5: Solve for x
    x = 20,581,242,231,179,488/171,072,147.20
  6. Step 6: Final answer
    x = 120,307,382.40

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1.5x scale

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.