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Finding the Fourth Proportional to 636,800,728.32, 955,380,251.52 and 227,915,009.28

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Solution

The fourth proportional to 636,800,728.32, 955,380,251.52 and 227,915,009.28 is: 341,936,636.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,800,728.32 : 955,380,251.52 = 227,915,009.28 : x
  2. Step 2: Convert to fraction form
    636,800,728.32/955,380,251.52 = 227,915,009.28/x
  3. Step 3: Cross multiply
    636,800,728.32x = 955,380,251.52 × 227,915,009.28
  4. Step 4: Simplify right side
    636,800,728.32x = 217,745,498,891,109,536
  5. Step 5: Solve for x
    x = 217,745,498,891,109,536/636,800,728.32
  6. Step 6: Final answer
    x = 341,936,636.07

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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.