Home / 13,666,198.08-18,858,454.56-7,864,043.52

Finding the Fourth Proportional to 13,666,198.08, 18,858,454.56 and 7,864,043.52

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Solution

The fourth proportional to 13,666,198.08, 18,858,454.56 and 7,864,043.52 is: 10,851,862.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666,198.08 : 18,858,454.56 = 7,864,043.52 : x
  2. Step 2: Convert to fraction form
    13,666,198.08/18,858,454.56 = 7,864,043.52/x
  3. Step 3: Cross multiply
    13,666,198.08x = 18,858,454.56 × 7,864,043.52
  4. Step 4: Simplify right side
    13,666,198.08x = 148,303,707,379,782.44
  5. Step 5: Solve for x
    x = 148,303,707,379,782.44/13,666,198.08
  6. Step 6: Final answer
    x = 10,851,862.86

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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.