Home / 8,458,128.54-11,672,043.30-4,786,979.31

Finding the Fourth Proportional to 8,458,128.54, 11,672,043.30 and 4,786,979.31

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Solution

The fourth proportional to 8,458,128.54, 11,672,043.30 and 4,786,979.31 is: 6,605,932.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458,128.54 : 11,672,043.30 = 4,786,979.31 : x
  2. Step 2: Convert to fraction form
    8,458,128.54/11,672,043.30 = 4,786,979.31/x
  3. Step 3: Cross multiply
    8,458,128.54x = 11,672,043.30 × 4,786,979.31
  4. Step 4: Simplify right side
    8,458,128.54x = 55,873,829,782,524.12
  5. Step 5: Solve for x
    x = 55,873,829,782,524.12/8,458,128.54
  6. Step 6: Final answer
    x = 6,605,932.92

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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.