Home / 5,190,999.45-7,782,283.69-2,160,633.61

Finding the Fourth Proportional to 5,190,999.45, 7,782,283.69 and 2,160,633.61

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Solution

The fourth proportional to 5,190,999.45, 7,782,283.69 and 2,160,633.61 is: 3,239,195.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190,999.45 : 7,782,283.69 = 2,160,633.61 : x
  2. Step 2: Convert to fraction form
    5,190,999.45/7,782,283.69 = 2,160,633.61/x
  3. Step 3: Cross multiply
    5,190,999.45x = 7,782,283.69 × 2,160,633.61
  4. Step 4: Simplify right side
    5,190,999.45x = 16,814,663,675,873.31
  5. Step 5: Solve for x
    x = 16,814,663,675,873.31/5,190,999.45
  6. Step 6: Final answer
    x = 3,239,195.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.