Home / 12,563,275.20-18,844,912.80-11,287,816.80

Finding the Fourth Proportional to 12,563,275.20, 18,844,912.80 and 11,287,816.80

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Solution

The fourth proportional to 12,563,275.20, 18,844,912.80 and 11,287,816.80 is: 16,931,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563,275.20 : 18,844,912.80 = 11,287,816.80 : x
  2. Step 2: Convert to fraction form
    12,563,275.20/18,844,912.80 = 11,287,816.80/x
  3. Step 3: Cross multiply
    12,563,275.20x = 18,844,912.80 × 11,287,816.80
  4. Step 4: Simplify right side
    12,563,275.20x = 212,717,923,298,375.06
  5. Step 5: Solve for x
    x = 212,717,923,298,375.06/12,563,275.20
  6. Step 6: Final answer
    x = 16,931,725.20

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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.