Home / 8,811,021.90-12,159,979.63-5,141,120.78

Finding the Fourth Proportional to 8,811,021.90, 12,159,979.63 and 5,141,120.78

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Solution

The fourth proportional to 8,811,021.90, 12,159,979.63 and 5,141,120.78 is: 7,095,195.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811,021.90 : 12,159,979.63 = 5,141,120.78 : x
  2. Step 2: Convert to fraction form
    8,811,021.90/12,159,979.63 = 5,141,120.78/x
  3. Step 3: Cross multiply
    8,811,021.90x = 12,159,979.63 × 5,141,120.78
  4. Step 4: Simplify right side
    8,811,021.90x = 62,515,923,923,778.95
  5. Step 5: Solve for x
    x = 62,515,923,923,778.95/8,811,021.90
  6. Step 6: Final answer
    x = 7,095,195.61

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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.