Home / 3,874,828.40-5,809,618.20-1,980,011.60

Finding the Fourth Proportional to 3,874,828.40, 5,809,618.20 and 1,980,011.60

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Solution

The fourth proportional to 3,874,828.40, 5,809,618.20 and 1,980,011.60 is: 2,968,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874,828.40 : 5,809,618.20 = 1,980,011.60 : x
  2. Step 2: Convert to fraction form
    3,874,828.40/5,809,618.20 = 1,980,011.60/x
  3. Step 3: Cross multiply
    3,874,828.40x = 5,809,618.20 × 1,980,011.60
  4. Step 4: Simplify right side
    3,874,828.40x = 11,503,111,427,571.12
  5. Step 5: Solve for x
    x = 11,503,111,427,571.12/3,874,828.40
  6. Step 6: Final answer
    x = 2,968,676.35

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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.