Home / 13,166,407.91-18,170,349.15-7,364,843.66

Finding the Fourth Proportional to 13,166,407.91, 18,170,349.15 and 7,364,843.66

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Solution

The fourth proportional to 13,166,407.91, 18,170,349.15 and 7,364,843.66 is: 10,163,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166,407.91 : 18,170,349.15 = 7,364,843.66 : x
  2. Step 2: Convert to fraction form
    13,166,407.91/18,170,349.15 = 7,364,843.66/x
  3. Step 3: Cross multiply
    13,166,407.91x = 18,170,349.15 × 7,364,843.66
  4. Step 4: Simplify right side
    13,166,407.91x = 133,821,780,646,512.14
  5. Step 5: Solve for x
    x = 133,821,780,646,512.14/13,166,407.91
  6. Step 6: Final answer
    x = 10,163,879.29

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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.