Home / 271,891,390.20-407,780,406.90-99,449,431.80

Finding the Fourth Proportional to 271,891,390.20, 407,780,406.90 and 99,449,431.80

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Solution

The fourth proportional to 271,891,390.20, 407,780,406.90 and 99,449,431.80 is: 149,153,416.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,891,390.20 : 407,780,406.90 = 99,449,431.80 : x
  2. Step 2: Convert to fraction form
    271,891,390.20/407,780,406.90 = 99,449,431.80/x
  3. Step 3: Cross multiply
    271,891,390.20x = 407,780,406.90 × 99,449,431.80
  4. Step 4: Simplify right side
    271,891,390.20x = 40,553,529,765,377,792
  5. Step 5: Solve for x
    x = 40,553,529,765,377,792/271,891,390.20
  6. Step 6: Final answer
    x = 149,153,416.50

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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.