Home / 419,904,405.10-629,856,607.65-384,191,569.90

Finding the Fourth Proportional to 419,904,405.10, 629,856,607.65 and 384,191,569.90

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Solution

The fourth proportional to 419,904,405.10, 629,856,607.65 and 384,191,569.90 is: 576,287,354.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,405.10 : 629,856,607.65 = 384,191,569.90 : x
  2. Step 2: Convert to fraction form
    419,904,405.10/629,856,607.65 = 384,191,569.90/x
  3. Step 3: Cross multiply
    419,904,405.10x = 629,856,607.65 × 384,191,569.90
  4. Step 4: Simplify right side
    419,904,405.10x = 241,985,598,904,941,824
  5. Step 5: Solve for x
    x = 241,985,598,904,941,824/419,904,405.10
  6. Step 6: Final answer
    x = 576,287,354.85

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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.