Home / 15,189,014.67-20,961,786.86-8,574,722.81

Finding the Fourth Proportional to 15,189,014.67, 20,961,786.86 and 8,574,722.81

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Solution

The fourth proportional to 15,189,014.67, 20,961,786.86 and 8,574,722.81 is: 11,833,651.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189,014.67 : 20,961,786.86 = 8,574,722.81 : x
  2. Step 2: Convert to fraction form
    15,189,014.67/20,961,786.86 = 8,574,722.81/x
  3. Step 3: Cross multiply
    15,189,014.67x = 20,961,786.86 × 8,574,722.81
  4. Step 4: Simplify right side
    15,189,014.67x = 179,741,511,889,879.66
  5. Step 5: Solve for x
    x = 179,741,511,889,879.66/15,189,014.67
  6. Step 6: Final answer
    x = 11,833,651.88

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1.5x scale

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.