Home / 492,412,910.85-679,545,926.01-269,389,418.94

Finding the Fourth Proportional to 492,412,910.85, 679,545,926.01 and 269,389,418.94

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Solution

The fourth proportional to 492,412,910.85, 679,545,926.01 and 269,389,418.94 is: 371,766,211.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,412,910.85 : 679,545,926.01 = 269,389,418.94 : x
  2. Step 2: Convert to fraction form
    492,412,910.85/679,545,926.01 = 269,389,418.94/x
  3. Step 3: Cross multiply
    492,412,910.85x = 679,545,926.01 × 269,389,418.94
  4. Step 4: Simplify right side
    492,412,910.85x = 183,062,482,150,878,144
  5. Step 5: Solve for x
    x = 183,062,482,150,878,144/492,412,910.85
  6. Step 6: Final answer
    x = 371,766,211.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.