Home / 419,904,497.10-629,856,745.65-290,658,045.90

Finding the Fourth Proportional to 419,904,497.10, 629,856,745.65 and 290,658,045.90

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Solution

The fourth proportional to 419,904,497.10, 629,856,745.65 and 290,658,045.90 is: 435,987,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,497.10 : 629,856,745.65 = 290,658,045.90 : x
  2. Step 2: Convert to fraction form
    419,904,497.10/629,856,745.65 = 290,658,045.90/x
  3. Step 3: Cross multiply
    419,904,497.10x = 629,856,745.65 × 290,658,045.90
  4. Step 4: Simplify right side
    419,904,497.10x = 183,072,930,887,562,304
  5. Step 5: Solve for x
    x = 183,072,930,887,562,304/419,904,497.10
  6. Step 6: Final answer
    x = 435,987,068.85

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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.