Home / 6,872,209.20-10,305,689.40-2,078,305.20

Finding the Fourth Proportional to 6,872,209.20, 10,305,689.40 and 2,078,305.20

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Solution

The fourth proportional to 6,872,209.20, 10,305,689.40 and 2,078,305.20 is: 3,116,664.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872,209.20 : 10,305,689.40 = 2,078,305.20 : x
  2. Step 2: Convert to fraction form
    6,872,209.20/10,305,689.40 = 2,078,305.20/x
  3. Step 3: Cross multiply
    6,872,209.20x = 10,305,689.40 × 2,078,305.20
  4. Step 4: Simplify right side
    6,872,209.20x = 21,418,367,869,604.88
  5. Step 5: Solve for x
    x = 21,418,367,869,604.88/6,872,209.20
  6. Step 6: Final answer
    x = 3,116,664.12

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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.