Home / 12,647,989.34-18,969,144.55-5,818,002.92

Finding the Fourth Proportional to 12,647,989.34, 18,969,144.55 and 5,818,002.92

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Solution

The fourth proportional to 12,647,989.34, 18,969,144.55 and 5,818,002.92 is: 8,725,698.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647,989.34 : 18,969,144.55 = 5,818,002.92 : x
  2. Step 2: Convert to fraction form
    12,647,989.34/18,969,144.55 = 5,818,002.92/x
  3. Step 3: Cross multiply
    12,647,989.34x = 18,969,144.55 × 5,818,002.92
  4. Step 4: Simplify right side
    12,647,989.34x = 110,362,538,381,802.09
  5. Step 5: Solve for x
    x = 110,362,538,381,802.09/12,647,989.34
  6. Step 6: Final answer
    x = 8,725,698.24

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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.