Home / 9,128,217.64-12,597,279.94-5,208,611.88

Finding the Fourth Proportional to 9,128,217.64, 12,597,279.94 and 5,208,611.88

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Solution

The fourth proportional to 9,128,217.64, 12,597,279.94 and 5,208,611.88 is: 7,188,078.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128,217.64 : 12,597,279.94 = 5,208,611.88 : x
  2. Step 2: Convert to fraction form
    9,128,217.64/12,597,279.94 = 5,208,611.88/x
  3. Step 3: Cross multiply
    9,128,217.64x = 12,597,279.94 × 5,208,611.88
  4. Step 4: Simplify right side
    9,128,217.64x = 65,614,341,951,169.68
  5. Step 5: Solve for x
    x = 65,614,341,951,169.68/9,128,217.64
  6. Step 6: Final answer
    x = 7,188,078.17

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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.