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Finding the Fourth Proportional to 422,855,625.60, 634,094,481.60 and 163,984,809.60

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Solution

The fourth proportional to 422,855,625.60, 634,094,481.60 and 163,984,809.60 is: 245,903,936.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,855,625.60 : 634,094,481.60 = 163,984,809.60 : x
  2. Step 2: Convert to fraction form
    422,855,625.60/634,094,481.60 = 163,984,809.60/x
  3. Step 3: Cross multiply
    422,855,625.60x = 634,094,481.60 × 163,984,809.60
  4. Step 4: Simplify right side
    422,855,625.60x = 103,981,862,833,586,704
  5. Step 5: Solve for x
    x = 103,981,862,833,586,704/422,855,625.60
  6. Step 6: Final answer
    x = 245,903,936.33

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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.