Home / 7,218,963-9,962,168.94-3,999,699

Finding the Fourth Proportional to 7,218,963, 9,962,168.94 and 3,999,699

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Solution

The fourth proportional to 7,218,963, 9,962,168.94 and 3,999,699 is: 5,519,584.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,963 : 9,962,168.94 = 3,999,699 : x
  2. Step 2: Convert to fraction form
    7,218,963/9,962,168.94 = 3,999,699/x
  3. Step 3: Cross multiply
    7,218,963x = 9,962,168.94 × 3,999,699
  4. Step 4: Simplify right side
    7,218,963x = 39,845,677,147,149.05
  5. Step 5: Solve for x
    x = 39,845,677,147,149.05/7,218,963
  6. Step 6: Final answer
    x = 5,519,584.62

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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.