Home / 20,959,986.52-28,924,576.70-11,667,409.24

Finding the Fourth Proportional to 20,959,986.52, 28,924,576.70 and 11,667,409.24

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Solution

The fourth proportional to 20,959,986.52, 28,924,576.70 and 11,667,409.24 is: 16,100,910.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,959,986.52 : 28,924,576.70 = 11,667,409.24 : x
  2. Step 2: Convert to fraction form
    20,959,986.52/28,924,576.70 = 11,667,409.24/x
  3. Step 3: Cross multiply
    20,959,986.52x = 28,924,576.70 × 11,667,409.24
  4. Step 4: Simplify right side
    20,959,986.52x = 337,474,873,452,668.69
  5. Step 5: Solve for x
    x = 337,474,873,452,668.69/20,959,986.52
  6. Step 6: Final answer
    x = 16,100,910.81

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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.