Home / 13,290,672.80-19,936,009.20-8,188,839.20

Finding the Fourth Proportional to 13,290,672.80, 19,936,009.20 and 8,188,839.20

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Solution

The fourth proportional to 13,290,672.80, 19,936,009.20 and 8,188,839.20 is: 12,283,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,672.80 : 19,936,009.20 = 8,188,839.20 : x
  2. Step 2: Convert to fraction form
    13,290,672.80/19,936,009.20 = 8,188,839.20/x
  3. Step 3: Cross multiply
    13,290,672.80x = 19,936,009.20 × 8,188,839.20
  4. Step 4: Simplify right side
    13,290,672.80x = 163,252,773,628,520.62
  5. Step 5: Solve for x
    x = 163,252,773,628,520.62/13,290,672.80
  6. Step 6: Final answer
    x = 12,283,258.80

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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.