Home / 13,608,778.60-20,389,548.30-8,813,999.80

Finding the Fourth Proportional to 13,608,778.60, 20,389,548.30 and 8,813,999.80

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Solution

The fourth proportional to 13,608,778.60, 20,389,548.30 and 8,813,999.80 is: 13,205,701.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,778.60 : 20,389,548.30 = 8,813,999.80 : x
  2. Step 2: Convert to fraction form
    13,608,778.60/20,389,548.30 = 8,813,999.80/x
  3. Step 3: Cross multiply
    13,608,778.60x = 20,389,548.30 × 8,813,999.80
  4. Step 4: Simplify right side
    13,608,778.60x = 179,713,474,638,290.38
  5. Step 5: Solve for x
    x = 179,713,474,638,290.38/13,608,778.60
  6. Step 6: Final answer
    x = 13,205,701.99

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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.