Home / 6,321,605.10-8,723,837.06-3,420,995.20

Finding the Fourth Proportional to 6,321,605.10, 8,723,837.06 and 3,420,995.20

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Solution

The fourth proportional to 6,321,605.10, 8,723,837.06 and 3,420,995.20 is: 4,720,985.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321,605.10 : 8,723,837.06 = 3,420,995.20 : x
  2. Step 2: Convert to fraction form
    6,321,605.10/8,723,837.06 = 3,420,995.20/x
  3. Step 3: Cross multiply
    6,321,605.10x = 8,723,837.06 × 3,420,995.20
  4. Step 4: Simplify right side
    6,321,605.10x = 29,844,204,707,842.12
  5. Step 5: Solve for x
    x = 29,844,204,707,842.12/6,321,605.10
  6. Step 6: Final answer
    x = 4,720,985.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.