Home / 13,690,340.20-18,886,738.98-8,254,812.52

Finding the Fourth Proportional to 13,690,340.20, 18,886,738.98 and 8,254,812.52

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Solution

The fourth proportional to 13,690,340.20, 18,886,738.98 and 8,254,812.52 is: 11,388,065.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690,340.20 : 18,886,738.98 = 8,254,812.52 : x
  2. Step 2: Convert to fraction form
    13,690,340.20/18,886,738.98 = 8,254,812.52/x
  3. Step 3: Cross multiply
    13,690,340.20x = 18,886,738.98 × 8,254,812.52
  4. Step 4: Simplify right side
    13,690,340.20x = 155,906,489,394,076.03
  5. Step 5: Solve for x
    x = 155,906,489,394,076.03/13,690,340.20
  6. Step 6: Final answer
    x = 11,388,065.39

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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.