Home / 15,091,115.22-20,825,085.69-8,215,621.38

Finding the Fourth Proportional to 15,091,115.22, 20,825,085.69 and 8,215,621.38

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Solution

The fourth proportional to 15,091,115.22, 20,825,085.69 and 8,215,621.38 is: 11,337,201.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,091,115.22 : 20,825,085.69 = 8,215,621.38 : x
  2. Step 2: Convert to fraction form
    15,091,115.22/20,825,085.69 = 8,215,621.38/x
  3. Step 3: Cross multiply
    15,091,115.22x = 20,825,085.69 × 8,215,621.38
  4. Step 4: Simplify right side
    15,091,115.22x = 171,091,019,235,096.06
  5. Step 5: Solve for x
    x = 171,091,019,235,096.06/15,091,115.22
  6. Step 6: Final answer
    x = 11,337,201.84

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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.