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Finding the Fourth Proportional to 298,954,835.40, 448,432,253.10 and 222,427,331.40

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Solution

The fourth proportional to 298,954,835.40, 448,432,253.10 and 222,427,331.40 is: 333,640,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,954,835.40 : 448,432,253.10 = 222,427,331.40 : x
  2. Step 2: Convert to fraction form
    298,954,835.40/448,432,253.10 = 222,427,331.40/x
  3. Step 3: Cross multiply
    298,954,835.40x = 448,432,253.10 × 222,427,331.40
  4. Step 4: Simplify right side
    298,954,835.40x = 99,743,589,370,722,384
  5. Step 5: Solve for x
    x = 99,743,589,370,722,384/298,954,835.40
  6. Step 6: Final answer
    x = 333,640,997.10

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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.