Home / 20,906,100.27-31,359,150.34-8,129,594.30

Finding the Fourth Proportional to 20,906,100.27, 31,359,150.34 and 8,129,594.30

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Solution

The fourth proportional to 20,906,100.27, 31,359,150.34 and 8,129,594.30 is: 12,194,391.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,906,100.27 : 31,359,150.34 = 8,129,594.30 : x
  2. Step 2: Convert to fraction form
    20,906,100.27/31,359,150.34 = 8,129,594.30/x
  3. Step 3: Cross multiply
    20,906,100.27x = 31,359,150.34 × 8,129,594.30
  4. Step 4: Simplify right side
    20,906,100.27x = 254,937,169,679,787.31
  5. Step 5: Solve for x
    x = 254,937,169,679,787.31/20,906,100.27
  6. Step 6: Final answer
    x = 12,194,391.42

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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.