Home / 1,025,568,226.80-1,538,315,015.40-411,985,839.60

Finding the Fourth Proportional to 1,025,568,226.80, 1,538,315,015.40 and 411,985,839.60

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Solution

The fourth proportional to 1,025,568,226.80, 1,538,315,015.40 and 411,985,839.60 is: 617,963,765.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,568,226.80 : 1,538,315,015.40 = 411,985,839.60 : x
  2. Step 2: Convert to fraction form
    1,025,568,226.80/1,538,315,015.40 = 411,985,839.60/x
  3. Step 3: Cross multiply
    1,025,568,226.80x = 1,538,315,015.40 × 411,985,839.60
  4. Step 4: Simplify right side
    1,025,568,226.80x = 633,764,003,188,856,064
  5. Step 5: Solve for x
    x = 633,764,003,188,856,064/1,025,568,226.80
  6. Step 6: Final answer
    x = 617,963,765.48

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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.