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Finding the Fourth Proportional to 299,383,405.20, 449,075,107.80 and 169,940,998.80

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Solution

The fourth proportional to 299,383,405.20, 449,075,107.80 and 169,940,998.80 is: 254,911,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,383,405.20 : 449,075,107.80 = 169,940,998.80 : x
  2. Step 2: Convert to fraction form
    299,383,405.20/449,075,107.80 = 169,940,998.80/x
  3. Step 3: Cross multiply
    299,383,405.20x = 449,075,107.80 × 169,940,998.80
  4. Step 4: Simplify right side
    299,383,405.20x = 76,316,272,355,749,680
  5. Step 5: Solve for x
    x = 76,316,272,355,749,680/299,383,405.20
  6. Step 6: Final answer
    x = 254,911,498.20

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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.