Home / 2,647,206.40-3,970,809.60-1,639,436.80

Finding the Fourth Proportional to 2,647,206.40, 3,970,809.60 and 1,639,436.80

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Solution

The fourth proportional to 2,647,206.40, 3,970,809.60 and 1,639,436.80 is: 2,459,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647,206.40 : 3,970,809.60 = 1,639,436.80 : x
  2. Step 2: Convert to fraction form
    2,647,206.40/3,970,809.60 = 1,639,436.80/x
  3. Step 3: Cross multiply
    2,647,206.40x = 3,970,809.60 × 1,639,436.80
  4. Step 4: Simplify right side
    2,647,206.40x = 6,509,891,384,033.28
  5. Step 5: Solve for x
    x = 6,509,891,384,033.28/2,647,206.40
  6. Step 6: Final answer
    x = 2,459,155.20

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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.