Home / 7,246,375.75-10,869,609.79-2,128,784.81

Finding the Fourth Proportional to 7,246,375.75, 10,869,609.79 and 2,128,784.81

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Solution

The fourth proportional to 7,246,375.75, 10,869,609.79 and 2,128,784.81 is: 3,193,190.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,246,375.75 : 10,869,609.79 = 2,128,784.81 : x
  2. Step 2: Convert to fraction form
    7,246,375.75/10,869,609.79 = 2,128,784.81/x
  3. Step 3: Cross multiply
    7,246,375.75x = 10,869,609.79 × 2,128,784.81
  4. Step 4: Simplify right side
    7,246,375.75x = 23,139,060,211,579.29
  5. Step 5: Solve for x
    x = 23,139,060,211,579.29/7,246,375.75
  6. Step 6: Final answer
    x = 3,193,190.78

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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.