Home / 3,929,975.04-5,423,327.28-2,187,616.80

Finding the Fourth Proportional to 3,929,975.04, 5,423,327.28 and 2,187,616.80

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Solution

The fourth proportional to 3,929,975.04, 5,423,327.28 and 2,187,616.80 is: 3,018,889.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,975.04 : 5,423,327.28 = 2,187,616.80 : x
  2. Step 2: Convert to fraction form
    3,929,975.04/5,423,327.28 = 2,187,616.80/x
  3. Step 3: Cross multiply
    3,929,975.04x = 5,423,327.28 × 2,187,616.80
  4. Step 4: Simplify right side
    3,929,975.04x = 11,864,161,869,626.30
  5. Step 5: Solve for x
    x = 11,864,161,869,626.30/3,929,975.04
  6. Step 6: Final answer
    x = 3,018,889.88

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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.