Home / 419,904,984.70-629,857,477.05-317,868,312.70

Finding the Fourth Proportional to 419,904,984.70, 629,857,477.05 and 317,868,312.70

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Solution

The fourth proportional to 419,904,984.70, 629,857,477.05 and 317,868,312.70 is: 476,802,469.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,984.70 : 629,857,477.05 = 317,868,312.70 : x
  2. Step 2: Convert to fraction form
    419,904,984.70/629,857,477.05 = 317,868,312.70/x
  3. Step 3: Cross multiply
    419,904,984.70x = 629,857,477.05 × 317,868,312.70
  4. Step 4: Simplify right side
    419,904,984.70x = 200,211,733,471,362,464
  5. Step 5: Solve for x
    x = 200,211,733,471,362,464/419,904,984.70
  6. Step 6: Final answer
    x = 476,802,469.05

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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.