Home / 690,412,033.43-1,035,610,964.12-399,093,791.93

Finding the Fourth Proportional to 690,412,033.43, 1,035,610,964.12 and 399,093,791.93

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Solution

The fourth proportional to 690,412,033.43, 1,035,610,964.12 and 399,093,791.93 is: 598,636,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,412,033.43 : 1,035,610,964.12 = 399,093,791.93 : x
  2. Step 2: Convert to fraction form
    690,412,033.43/1,035,610,964.12 = 399,093,791.93/x
  3. Step 3: Cross multiply
    690,412,033.43x = 1,035,610,964.12 × 399,093,791.93
  4. Step 4: Simplify right side
    690,412,033.43x = 413,305,906,627,760,448
  5. Step 5: Solve for x
    x = 413,305,906,627,760,448/690,412,033.43
  6. Step 6: Final answer
    x = 598,636,591.80

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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.