Home / 510,664,512.80-765,996,769.20-252,384,186.80

Finding the Fourth Proportional to 510,664,512.80, 765,996,769.20 and 252,384,186.80

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Solution

The fourth proportional to 510,664,512.80, 765,996,769.20 and 252,384,186.80 is: 378,576,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,664,512.80 : 765,996,769.20 = 252,384,186.80 : x
  2. Step 2: Convert to fraction form
    510,664,512.80/765,996,769.20 = 252,384,186.80/x
  3. Step 3: Cross multiply
    510,664,512.80x = 765,996,769.20 × 252,384,186.80
  4. Step 4: Simplify right side
    510,664,512.80x = 193,325,471,685,969,312
  5. Step 5: Solve for x
    x = 193,325,471,685,969,312/510,664,512.80
  6. Step 6: Final answer
    x = 378,576,280.20

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Similar ratio
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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.