Home / 728,628,624.86-1,092,687,209.00-203,856,711.20

Finding the Fourth Proportional to 728,628,624.86, 1,092,687,209.00 and 203,856,711.20

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Solution

The fourth proportional to 728,628,624.86, 1,092,687,209.00 and 203,856,711.20 is: 305,713,518.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,628,624.86 : 1,092,687,209.00 = 203,856,711.20 : x
  2. Step 2: Convert to fraction form
    728,628,624.86/1,092,687,209.00 = 203,856,711.20/x
  3. Step 3: Cross multiply
    728,628,624.86x = 1,092,687,209.00 × 203,856,711.20
  4. Step 4: Simplify right side
    728,628,624.86x = 222,751,620,790,564,288
  5. Step 5: Solve for x
    x = 222,751,620,790,564,288/728,628,624.86
  6. Step 6: Final answer
    x = 305,713,518.78

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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.