Home / 10,415,998.80-15,623,998.20-4,431,589.20

Finding the Fourth Proportional to 10,415,998.80, 15,623,998.20 and 4,431,589.20

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Solution

The fourth proportional to 10,415,998.80, 15,623,998.20 and 4,431,589.20 is: 6,647,383.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,415,998.80 : 15,623,998.20 = 4,431,589.20 : x
  2. Step 2: Convert to fraction form
    10,415,998.80/15,623,998.20 = 4,431,589.20/x
  3. Step 3: Cross multiply
    10,415,998.80x = 15,623,998.20 × 4,431,589.20
  4. Step 4: Simplify right side
    10,415,998.80x = 69,239,141,683,939.44
  5. Step 5: Solve for x
    x = 69,239,141,683,939.44/10,415,998.80
  6. Step 6: Final answer
    x = 6,647,383.80

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Similar ratio
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1.5x scale

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.