Home / 15,520,713.63-21,419,245.58-8,645,198.73

Finding the Fourth Proportional to 15,520,713.63, 21,419,245.58 and 8,645,198.73

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Solution

The fourth proportional to 15,520,713.63, 21,419,245.58 and 8,645,198.73 is: 11,930,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,520,713.63 : 21,419,245.58 = 8,645,198.73 : x
  2. Step 2: Convert to fraction form
    15,520,713.63/21,419,245.58 = 8,645,198.73/x
  3. Step 3: Cross multiply
    15,520,713.63x = 21,419,245.58 × 8,645,198.73
  4. Step 4: Simplify right side
    15,520,713.63x = 185,173,634,642,548.12
  5. Step 5: Solve for x
    x = 185,173,634,642,548.12/15,520,713.63
  6. Step 6: Final answer
    x = 11,930,742.30

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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.