Home / 419,904,998.10-629,857,497.15-147,303,321.30

Finding the Fourth Proportional to 419,904,998.10, 629,857,497.15 and 147,303,321.30

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Solution

The fourth proportional to 419,904,998.10, 629,857,497.15 and 147,303,321.30 is: 220,954,981.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,998.10 : 629,857,497.15 = 147,303,321.30 : x
  2. Step 2: Convert to fraction form
    419,904,998.10/629,857,497.15 = 147,303,321.30/x
  3. Step 3: Cross multiply
    419,904,998.10x = 629,857,497.15 × 147,303,321.30
  4. Step 4: Simplify right side
    419,904,998.10x = 92,780,101,275,900,288
  5. Step 5: Solve for x
    x = 92,780,101,275,900,288/419,904,998.10
  6. Step 6: Final answer
    x = 220,954,981.95

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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.