Home / 561,093,960.70-774,333,578.94-313,575,307.66

Finding the Fourth Proportional to 561,093,960.70, 774,333,578.94 and 313,575,307.66

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Solution

The fourth proportional to 561,093,960.70, 774,333,578.94 and 313,575,307.66 is: 432,747,288.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,093,960.70 : 774,333,578.94 = 313,575,307.66 : x
  2. Step 2: Convert to fraction form
    561,093,960.70/774,333,578.94 = 313,575,307.66/x
  3. Step 3: Cross multiply
    561,093,960.70x = 774,333,578.94 × 313,575,307.66
  4. Step 4: Simplify right side
    561,093,960.70x = 242,811,890,247,579,424
  5. Step 5: Solve for x
    x = 242,811,890,247,579,424/561,093,960.70
  6. Step 6: Final answer
    x = 432,747,288.79

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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.