Home / 9,128,216.64-12,597,278.56-5,208,610.88

Finding the Fourth Proportional to 9,128,216.64, 12,597,278.56 and 5,208,610.88

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Solution

The fourth proportional to 9,128,216.64, 12,597,278.56 and 5,208,610.88 is: 7,188,076.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128,216.64 : 12,597,278.56 = 5,208,610.88 : x
  2. Step 2: Convert to fraction form
    9,128,216.64/12,597,278.56 = 5,208,610.88/x
  3. Step 3: Cross multiply
    9,128,216.64x = 12,597,278.56 × 5,208,610.88
  4. Step 4: Simplify right side
    9,128,216.64x = 65,614,322,166,006.73
  5. Step 5: Solve for x
    x = 65,614,322,166,006.73/9,128,216.64
  6. Step 6: Final answer
    x = 7,188,076.79

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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.