Home / 15,106,709.85-20,847,262.58-8,231,191.93

Finding the Fourth Proportional to 15,106,709.85, 20,847,262.58 and 8,231,191.93

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Solution

The fourth proportional to 15,106,709.85, 20,847,262.58 and 8,231,191.93 is: 11,359,046.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106,709.85 : 20,847,262.58 = 8,231,191.93 : x
  2. Step 2: Convert to fraction form
    15,106,709.85/20,847,262.58 = 8,231,191.93/x
  3. Step 3: Cross multiply
    15,106,709.85x = 20,847,262.58 × 8,231,191.93
  4. Step 4: Simplify right side
    15,106,709.85x = 171,597,819,511,086.97
  5. Step 5: Solve for x
    x = 171,597,819,511,086.97/15,106,709.85
  6. Step 6: Final answer
    x = 11,359,046.49

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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.