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Finding the Fourth Proportional to 299,386,051.20, 449,079,076.80 and 169,943,644.80

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Solution

The fourth proportional to 299,386,051.20, 449,079,076.80 and 169,943,644.80 is: 254,915,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,386,051.20 : 449,079,076.80 = 169,943,644.80 : x
  2. Step 2: Convert to fraction form
    299,386,051.20/449,079,076.80 = 169,943,644.80/x
  3. Step 3: Cross multiply
    299,386,051.20x = 449,079,076.80 × 169,943,644.80
  4. Step 4: Simplify right side
    299,386,051.20x = 76,318,135,114,811,136
  5. Step 5: Solve for x
    x = 76,318,135,114,811,136/299,386,051.20
  6. Step 6: Final answer
    x = 254,915,467.20

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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.