Home / 20,137,289.60-27,789,323.20-10,969,938.56

Finding the Fourth Proportional to 20,137,289.60, 27,789,323.20 and 10,969,938.56

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Solution

The fourth proportional to 20,137,289.60, 27,789,323.20 and 10,969,938.56 is: 15,138,440.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,137,289.60 : 27,789,323.20 = 10,969,938.56 : x
  2. Step 2: Convert to fraction form
    20,137,289.60/27,789,323.20 = 10,969,938.56/x
  3. Step 3: Cross multiply
    20,137,289.60x = 27,789,323.20 × 10,969,938.56
  4. Step 4: Simplify right side
    20,137,289.60x = 304,847,168,127,982.62
  5. Step 5: Solve for x
    x = 304,847,168,127,982.62/20,137,289.60
  6. Step 6: Final answer
    x = 15,138,440.88

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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.