Home / 20,111,257.76-27,754,160.64-11,409,797.12

Finding the Fourth Proportional to 20,111,257.76, 27,754,160.64 and 11,409,797.12

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Solution

The fourth proportional to 20,111,257.76, 27,754,160.64 and 11,409,797.12 is: 15,745,874.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,257.76 : 27,754,160.64 = 11,409,797.12 : x
  2. Step 2: Convert to fraction form
    20,111,257.76/27,754,160.64 = 11,409,797.12/x
  3. Step 3: Cross multiply
    20,111,257.76x = 27,754,160.64 × 11,409,797.12
  4. Step 4: Simplify right side
    20,111,257.76x = 316,669,342,138,289.31
  5. Step 5: Solve for x
    x = 316,669,342,138,289.31/20,111,257.76
  6. Step 6: Final answer
    x = 15,745,874.57

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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.