Home / 419,904,672.70-629,857,009.05-317,868,000.70

Finding the Fourth Proportional to 419,904,672.70, 629,857,009.05 and 317,868,000.70

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Solution

The fourth proportional to 419,904,672.70, 629,857,009.05 and 317,868,000.70 is: 476,802,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,672.70 : 629,857,009.05 = 317,868,000.70 : x
  2. Step 2: Convert to fraction form
    419,904,672.70/629,857,009.05 = 317,868,000.70/x
  3. Step 3: Cross multiply
    419,904,672.70x = 629,857,009.05 × 317,868,000.70
  4. Step 4: Simplify right side
    419,904,672.70x = 200,211,388,193,605,280
  5. Step 5: Solve for x
    x = 200,211,388,193,605,280/419,904,672.70
  6. Step 6: Final answer
    x = 476,802,001.05

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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.