Home / 13,790,219.60-20,653,836.60-8,121,515.60

Finding the Fourth Proportional to 13,790,219.60, 20,653,836.60 and 8,121,515.60

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Solution

The fourth proportional to 13,790,219.60, 20,653,836.60 and 8,121,515.60 is: 12,163,726.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790,219.60 : 20,653,836.60 = 8,121,515.60 : x
  2. Step 2: Convert to fraction form
    13,790,219.60/20,653,836.60 = 8,121,515.60/x
  3. Step 3: Cross multiply
    13,790,219.60x = 20,653,836.60 × 8,121,515.60
  4. Step 4: Simplify right side
    13,790,219.60x = 167,740,456,146,750.97
  5. Step 5: Solve for x
    x = 167,740,456,146,750.97/13,790,219.60
  6. Step 6: Final answer
    x = 12,163,726.25

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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.