Home / 819,072,247.20-1,228,608,370.80-512,962,231.20

Finding the Fourth Proportional to 819,072,247.20, 1,228,608,370.80 and 512,962,231.20

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Solution

The fourth proportional to 819,072,247.20, 1,228,608,370.80 and 512,962,231.20 is: 769,443,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,072,247.20 : 1,228,608,370.80 = 512,962,231.20 : x
  2. Step 2: Convert to fraction form
    819,072,247.20/1,228,608,370.80 = 512,962,231.20/x
  3. Step 3: Cross multiply
    819,072,247.20x = 1,228,608,370.80 × 512,962,231.20
  4. Step 4: Simplify right side
    819,072,247.20x = 630,229,691,156,564,864
  5. Step 5: Solve for x
    x = 630,229,691,156,564,864/819,072,247.20
  6. Step 6: Final answer
    x = 769,443,346.80

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Double scale
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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.