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Finding the Fourth Proportional to 299,548,928.60, 449,323,392.90 and 251,175,987.80

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Solution

The fourth proportional to 299,548,928.60, 449,323,392.90 and 251,175,987.80 is: 376,763,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,548,928.60 : 449,323,392.90 = 251,175,987.80 : x
  2. Step 2: Convert to fraction form
    299,548,928.60/449,323,392.90 = 251,175,987.80/x
  3. Step 3: Cross multiply
    299,548,928.60x = 449,323,392.90 × 251,175,987.80
  4. Step 4: Simplify right side
    299,548,928.60x = 112,859,247,053,305,008
  5. Step 5: Solve for x
    x = 112,859,247,053,305,008/299,548,928.60
  6. Step 6: Final answer
    x = 376,763,981.70

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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.