Home / 12,201,791.28-16,839,965.32-7,045,144.17

Finding the Fourth Proportional to 12,201,791.28, 16,839,965.32 and 7,045,144.17

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Solution

The fourth proportional to 12,201,791.28, 16,839,965.32 and 7,045,144.17 is: 9,723,161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201,791.28 : 16,839,965.32 = 7,045,144.17 : x
  2. Step 2: Convert to fraction form
    12,201,791.28/16,839,965.32 = 7,045,144.17/x
  3. Step 3: Cross multiply
    12,201,791.28x = 16,839,965.32 × 7,045,144.17
  4. Step 4: Simplify right side
    12,201,791.28x = 118,639,983,479,587.31
  5. Step 5: Solve for x
    x = 118,639,983,479,587.31/12,201,791.28
  6. Step 6: Final answer
    x = 9,723,161.19

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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.