Home / 2,105,999.40-3,158,999.10-1,210,204.20

Finding the Fourth Proportional to 2,105,999.40, 3,158,999.10 and 1,210,204.20

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Solution

The fourth proportional to 2,105,999.40, 3,158,999.10 and 1,210,204.20 is: 1,815,306.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,999.40 : 3,158,999.10 = 1,210,204.20 : x
  2. Step 2: Convert to fraction form
    2,105,999.40/3,158,999.10 = 1,210,204.20/x
  3. Step 3: Cross multiply
    2,105,999.40x = 3,158,999.10 × 1,210,204.20
  4. Step 4: Simplify right side
    2,105,999.40x = 3,823,033,978,616.22
  5. Step 5: Solve for x
    x = 3,823,033,978,616.22/2,105,999.40
  6. Step 6: Final answer
    x = 1,815,306.30

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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.