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Finding the Fourth Proportional to 298,936,076.10, 448,404,114.15 and 280,760,793.90

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Solution

The fourth proportional to 298,936,076.10, 448,404,114.15 and 280,760,793.90 is: 421,141,190.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,936,076.10 : 448,404,114.15 = 280,760,793.90 : x
  2. Step 2: Convert to fraction form
    298,936,076.10/448,404,114.15 = 280,760,793.90/x
  3. Step 3: Cross multiply
    298,936,076.10x = 448,404,114.15 × 280,760,793.90
  4. Step 4: Simplify right side
    298,936,076.10x = 125,894,295,076,780,208
  5. Step 5: Solve for x
    x = 125,894,295,076,780,208/298,936,076.10
  6. Step 6: Final answer
    x = 421,141,190.85

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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.