Home / 812,355,072.14-1,218,707,417.82-252,105,836.52

Finding the Fourth Proportional to 812,355,072.14, 1,218,707,417.82 and 252,105,836.52

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Solution

The fourth proportional to 812,355,072.14, 1,218,707,417.82 and 252,105,836.52 is: 378,213,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,355,072.14 : 1,218,707,417.82 = 252,105,836.52 : x
  2. Step 2: Convert to fraction form
    812,355,072.14/1,218,707,417.82 = 252,105,836.52/x
  3. Step 3: Cross multiply
    812,355,072.14x = 1,218,707,417.82 × 252,105,836.52
  4. Step 4: Simplify right side
    812,355,072.14x = 307,243,253,042,640,256
  5. Step 5: Solve for x
    x = 307,243,253,042,640,256/812,355,072.14
  6. Step 6: Final answer
    x = 378,213,005.10

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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.