Home / 419,904,377.90-629,856,566.86-381,609,133.10

Finding the Fourth Proportional to 419,904,377.90, 629,856,566.86 and 381,609,133.10

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Solution

The fourth proportional to 419,904,377.90, 629,856,566.86 and 381,609,133.10 is: 572,413,699.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,377.90 : 629,856,566.86 = 381,609,133.10 : x
  2. Step 2: Convert to fraction form
    419,904,377.90/629,856,566.86 = 381,609,133.10/x
  3. Step 3: Cross multiply
    419,904,377.90x = 629,856,566.86 × 381,609,133.10
  4. Step 4: Simplify right side
    419,904,377.90x = 240,359,018,456,786,816
  5. Step 5: Solve for x
    x = 240,359,018,456,786,816/419,904,377.90
  6. Step 6: Final answer
    x = 572,413,699.66

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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.