Home / 13,669,990.20-20,504,985.30-7,276,951.80

Finding the Fourth Proportional to 13,669,990.20, 20,504,985.30 and 7,276,951.80

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Solution

The fourth proportional to 13,669,990.20, 20,504,985.30 and 7,276,951.80 is: 10,915,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669,990.20 : 20,504,985.30 = 7,276,951.80 : x
  2. Step 2: Convert to fraction form
    13,669,990.20/20,504,985.30 = 7,276,951.80/x
  3. Step 3: Cross multiply
    13,669,990.20x = 20,504,985.30 × 7,276,951.80
  4. Step 4: Simplify right side
    13,669,990.20x = 149,213,789,687,808.53
  5. Step 5: Solve for x
    x = 149,213,789,687,808.53/13,669,990.20
  6. Step 6: Final answer
    x = 10,915,427.70

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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.