Home / 408,427,669.74-563,633,781.40-222,789,511.02

Finding the Fourth Proportional to 408,427,669.74, 563,633,781.40 and 222,789,511.02

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Solution

The fourth proportional to 408,427,669.74, 563,633,781.40 and 222,789,511.02 is: 307,451,487.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,427,669.74 : 563,633,781.40 = 222,789,511.02 : x
  2. Step 2: Convert to fraction form
    408,427,669.74/563,633,781.40 = 222,789,511.02/x
  3. Step 3: Cross multiply
    408,427,669.74x = 563,633,781.40 × 222,789,511.02
  4. Step 4: Simplify right side
    408,427,669.74x = 125,571,694,552,459,568
  5. Step 5: Solve for x
    x = 125,571,694,552,459,568/408,427,669.74
  6. Step 6: Final answer
    x = 307,451,487.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.