Home / 15,171,203.28-20,918,371.28-12,261,596.60

Finding the Fourth Proportional to 15,171,203.28, 20,918,371.28 and 12,261,596.60

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Solution

The fourth proportional to 15,171,203.28, 20,918,371.28 and 12,261,596.60 is: 16,906,544.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171,203.28 : 20,918,371.28 = 12,261,596.60 : x
  2. Step 2: Convert to fraction form
    15,171,203.28/20,918,371.28 = 12,261,596.60/x
  3. Step 3: Cross multiply
    15,171,203.28x = 20,918,371.28 × 12,261,596.60
  4. Step 4: Simplify right side
    15,171,203.28x = 256,492,630,164,385.66
  5. Step 5: Solve for x
    x = 256,492,630,164,385.66/15,171,203.28
  6. Step 6: Final answer
    x = 16,906,544.95

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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.