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Finding the Fourth Proportional to 220,949,642.40, 331,449,346.80 and 67,594,480.80

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Solution

The fourth proportional to 220,949,642.40, 331,449,346.80 and 67,594,480.80 is: 101,399,333.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,949,642.40 : 331,449,346.80 = 67,594,480.80 : x
  2. Step 2: Convert to fraction form
    220,949,642.40/331,449,346.80 = 67,594,480.80/x
  3. Step 3: Cross multiply
    220,949,642.40x = 331,449,346.80 × 67,594,480.80
  4. Step 4: Simplify right side
    220,949,642.40x = 22,404,146,508,445,140
  5. Step 5: Solve for x
    x = 22,404,146,508,445,140/220,949,642.40
  6. Step 6: Final answer
    x = 101,399,333.64

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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.