Home / 10,256,854.20-15,364,286.10-5,211,007.80

Finding the Fourth Proportional to 10,256,854.20, 15,364,286.10 and 5,211,007.80

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Solution

The fourth proportional to 10,256,854.20, 15,364,286.10 and 5,211,007.80 is: 7,805,845.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,256,854.20 : 15,364,286.10 = 5,211,007.80 : x
  2. Step 2: Convert to fraction form
    10,256,854.20/15,364,286.10 = 5,211,007.80/x
  3. Step 3: Cross multiply
    10,256,854.20x = 15,364,286.10 × 5,211,007.80
  4. Step 4: Simplify right side
    10,256,854.20x = 80,063,414,708,531.58
  5. Step 5: Solve for x
    x = 80,063,414,708,531.58/10,256,854.20
  6. Step 6: Final answer
    x = 7,805,845.06

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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.