Home / 419,904,847.90-629,857,271.85-204,913,999.90

Finding the Fourth Proportional to 419,904,847.90, 629,857,271.85 and 204,913,999.90

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Solution

The fourth proportional to 419,904,847.90, 629,857,271.85 and 204,913,999.90 is: 307,370,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,847.90 : 629,857,271.85 = 204,913,999.90 : x
  2. Step 2: Convert to fraction form
    419,904,847.90/629,857,271.85 = 204,913,999.90/x
  3. Step 3: Cross multiply
    419,904,847.90x = 629,857,271.85 × 204,913,999.90
  4. Step 4: Simplify right side
    419,904,847.90x = 129,066,572,940,885,184
  5. Step 5: Solve for x
    x = 129,066,572,940,885,184/419,904,847.90
  6. Step 6: Final answer
    x = 307,370,999.85

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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.