Home / 539,635,001.76-809,751,807.59-263,288,487.20

Finding the Fourth Proportional to 539,635,001.76, 809,751,807.59 and 263,288,487.20

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Solution

The fourth proportional to 539,635,001.76, 809,751,807.59 and 263,288,487.20 is: 395,078,761.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,635,001.76 : 809,751,807.59 = 263,288,487.20 : x
  2. Step 2: Convert to fraction form
    539,635,001.76/809,751,807.59 = 263,288,487.20/x
  3. Step 3: Cross multiply
    539,635,001.76x = 809,751,807.59 × 263,288,487.20
  4. Step 4: Simplify right side
    539,635,001.76x = 213,198,328,422,471,392
  5. Step 5: Solve for x
    x = 213,198,328,422,471,392/539,635,001.76
  6. Step 6: Final answer
    x = 395,078,761.99

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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.