Home / 18,191,753.20-27,287,629.80-8,625,815.20

Finding the Fourth Proportional to 18,191,753.20, 27,287,629.80 and 8,625,815.20

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Solution

The fourth proportional to 18,191,753.20, 27,287,629.80 and 8,625,815.20 is: 12,938,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191,753.20 : 27,287,629.80 = 8,625,815.20 : x
  2. Step 2: Convert to fraction form
    18,191,753.20/27,287,629.80 = 8,625,815.20/x
  3. Step 3: Cross multiply
    18,191,753.20x = 27,287,629.80 × 8,625,815.20
  4. Step 4: Simplify right side
    18,191,753.20x = 235,378,051,900,812.94
  5. Step 5: Solve for x
    x = 235,378,051,900,812.94/18,191,753.20
  6. Step 6: Final answer
    x = 12,938,722.80

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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.