Home / 10,781,687.20-16,172,530.80-4,388,648.80

Finding the Fourth Proportional to 10,781,687.20, 16,172,530.80 and 4,388,648.80

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Solution

The fourth proportional to 10,781,687.20, 16,172,530.80 and 4,388,648.80 is: 6,582,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781,687.20 : 16,172,530.80 = 4,388,648.80 : x
  2. Step 2: Convert to fraction form
    10,781,687.20/16,172,530.80 = 4,388,648.80/x
  3. Step 3: Cross multiply
    10,781,687.20x = 16,172,530.80 × 4,388,648.80
  4. Step 4: Simplify right side
    10,781,687.20x = 70,975,557,888,383.05
  5. Step 5: Solve for x
    x = 70,975,557,888,383.05/10,781,687.20
  6. Step 6: Final answer
    x = 6,582,973.20

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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.