Home / 20,906,101.27-31,359,151.84-8,129,595.30

Finding the Fourth Proportional to 20,906,101.27, 31,359,151.84 and 8,129,595.30

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Solution

The fourth proportional to 20,906,101.27, 31,359,151.84 and 8,129,595.30 is: 12,194,392.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,906,101.27 : 31,359,151.84 = 8,129,595.30 : x
  2. Step 2: Convert to fraction form
    20,906,101.27/31,359,151.84 = 8,129,595.30/x
  3. Step 3: Cross multiply
    20,906,101.27x = 31,359,151.84 × 8,129,595.30
  4. Step 4: Simplify right side
    20,906,101.27x = 254,937,213,410,450.34
  5. Step 5: Solve for x
    x = 254,937,213,410,450.34/20,906,101.27
  6. Step 6: Final answer
    x = 12,194,392.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.