Home / 419,515,731.70-629,499,205.23-404,246,017.78

Finding the Fourth Proportional to 419,515,731.70, 629,499,205.23 and 404,246,017.78

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Solution

The fourth proportional to 419,515,731.70, 629,499,205.23 and 404,246,017.78 is: 606,586,422.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,515,731.70 : 629,499,205.23 = 404,246,017.78 : x
  2. Step 2: Convert to fraction form
    419,515,731.70/629,499,205.23 = 404,246,017.78/x
  3. Step 3: Cross multiply
    419,515,731.70x = 629,499,205.23 × 404,246,017.78
  4. Step 4: Simplify right side
    419,515,731.70x = 254,472,546,909,902,432
  5. Step 5: Solve for x
    x = 254,472,546,909,902,432/419,515,731.70
  6. Step 6: Final answer
    x = 606,586,422.58

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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.