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Finding the Fourth Proportional to 538,920,481.70, 808,380,722.55 and 484,500,923.30

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Solution

The fourth proportional to 538,920,481.70, 808,380,722.55 and 484,500,923.30 is: 726,751,384.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,920,481.70 : 808,380,722.55 = 484,500,923.30 : x
  2. Step 2: Convert to fraction form
    538,920,481.70/808,380,722.55 = 484,500,923.30/x
  3. Step 3: Cross multiply
    538,920,481.70x = 808,380,722.55 × 484,500,923.30
  4. Step 4: Simplify right side
    538,920,481.70x = 391,661,206,453,396,096
  5. Step 5: Solve for x
    x = 391,661,206,453,396,096/538,920,481.70
  6. Step 6: Final answer
    x = 726,751,384.95

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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.