Home / 12,669,161.72-17,479,332.78-7,162,004.12

Finding the Fourth Proportional to 12,669,161.72, 17,479,332.78 and 7,162,004.12

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Solution

The fourth proportional to 12,669,161.72, 17,479,332.78 and 7,162,004.12 is: 9,881,242.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669,161.72 : 17,479,332.78 = 7,162,004.12 : x
  2. Step 2: Convert to fraction form
    12,669,161.72/17,479,332.78 = 7,162,004.12/x
  3. Step 3: Cross multiply
    12,669,161.72x = 17,479,332.78 × 7,162,004.12
  4. Step 4: Simplify right side
    12,669,161.72x = 125,187,053,385,211.06
  5. Step 5: Solve for x
    x = 125,187,053,385,211.06/12,669,161.72
  6. Step 6: Final answer
    x = 9,881,242.04

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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.