Home / 7,218,962-9,962,167.56-3,999,698

Finding the Fourth Proportional to 7,218,962, 9,962,167.56 and 3,999,698

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Solution

The fourth proportional to 7,218,962, 9,962,167.56 and 3,999,698 is: 5,519,583.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,962 : 9,962,167.56 = 3,999,698 : x
  2. Step 2: Convert to fraction form
    7,218,962/9,962,167.56 = 3,999,698/x
  3. Step 3: Cross multiply
    7,218,962x = 9,962,167.56 × 3,999,698
  4. Step 4: Simplify right side
    7,218,962x = 39,845,661,665,396.88
  5. Step 5: Solve for x
    x = 39,845,661,665,396.88/7,218,962
  6. Step 6: Final answer
    x = 5,519,583.24

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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.