Home / 521,567,179.40-782,350,769.10-513,505,022.60

Finding the Fourth Proportional to 521,567,179.40, 782,350,769.10 and 513,505,022.60

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Solution

The fourth proportional to 521,567,179.40, 782,350,769.10 and 513,505,022.60 is: 770,257,533.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,567,179.40 : 782,350,769.10 = 513,505,022.60 : x
  2. Step 2: Convert to fraction form
    521,567,179.40/782,350,769.10 = 513,505,022.60/x
  3. Step 3: Cross multiply
    521,567,179.40x = 782,350,769.10 × 513,505,022.60
  4. Step 4: Simplify right side
    521,567,179.40x = 401,741,049,367,822,912
  5. Step 5: Solve for x
    x = 401,741,049,367,822,912/521,567,179.40
  6. Step 6: Final answer
    x = 770,257,533.90

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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.