Home / 6,782,331.12-10,175,072.36-1,989,826.80

Finding the Fourth Proportional to 6,782,331.12, 10,175,072.36 and 1,989,826.80

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Solution

The fourth proportional to 6,782,331.12, 10,175,072.36 and 1,989,826.80 is: 2,985,202.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,782,331.12 : 10,175,072.36 = 1,989,826.80 : x
  2. Step 2: Convert to fraction form
    6,782,331.12/10,175,072.36 = 1,989,826.80/x
  3. Step 3: Cross multiply
    6,782,331.12x = 10,175,072.36 × 1,989,826.80
  4. Step 4: Simplify right side
    6,782,331.12x = 20,246,631,673,867.25
  5. Step 5: Solve for x
    x = 20,246,631,673,867.25/6,782,331.12
  6. Step 6: Final answer
    x = 2,985,202.48

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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.