Home / 3,939,772.29-5,436,968.80-2,220,892.80

Finding the Fourth Proportional to 3,939,772.29, 5,436,968.80 and 2,220,892.80

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Solution

The fourth proportional to 3,939,772.29, 5,436,968.80 and 2,220,892.80 is: 3,064,878.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,772.29 : 5,436,968.80 = 2,220,892.80 : x
  2. Step 2: Convert to fraction form
    3,939,772.29/5,436,968.80 = 2,220,892.80/x
  3. Step 3: Cross multiply
    3,939,772.29x = 5,436,968.80 × 2,220,892.80
  4. Step 4: Simplify right side
    3,939,772.29x = 12,074,924,879,596.88
  5. Step 5: Solve for x
    x = 12,074,924,879,596.88/3,939,772.29
  6. Step 6: Final answer
    x = 3,064,878.88

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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.