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Finding the Fourth Proportional to 551,424,185.80, 827,136,278.70 and 449,387,513.80

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Solution

The fourth proportional to 551,424,185.80, 827,136,278.70 and 449,387,513.80 is: 674,081,270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,424,185.80 : 827,136,278.70 = 449,387,513.80 : x
  2. Step 2: Convert to fraction form
    551,424,185.80/827,136,278.70 = 449,387,513.80/x
  3. Step 3: Cross multiply
    551,424,185.80x = 827,136,278.70 × 449,387,513.80
  4. Step 4: Simplify right side
    551,424,185.80x = 371,704,715,858,776,896
  5. Step 5: Solve for x
    x = 371,704,715,858,776,896/551,424,185.80
  6. Step 6: Final answer
    x = 674,081,270.70

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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.