Home / 12,378,634.65-18,568,772.10-3,280,605.30

Finding the Fourth Proportional to 12,378,634.65, 18,568,772.10 and 3,280,605.30

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Solution

The fourth proportional to 12,378,634.65, 18,568,772.10 and 3,280,605.30 is: 4,921,125.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378,634.65 : 18,568,772.10 = 3,280,605.30 : x
  2. Step 2: Convert to fraction form
    12,378,634.65/18,568,772.10 = 3,280,605.30/x
  3. Step 3: Cross multiply
    12,378,634.65x = 18,568,772.10 × 3,280,605.30
  4. Step 4: Simplify right side
    12,378,634.65x = 60,916,812,165,752.13
  5. Step 5: Solve for x
    x = 60,916,812,165,752.13/12,378,634.65
  6. Step 6: Final answer
    x = 4,921,125.30

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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.