Home / 10,987,549.60-16,499,986.80-8,150,864.80

Finding the Fourth Proportional to 10,987,549.60, 16,499,986.80 and 8,150,864.80

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Solution

The fourth proportional to 10,987,549.60, 16,499,986.80 and 8,150,864.80 is: 12,240,141.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987,549.60 : 16,499,986.80 = 8,150,864.80 : x
  2. Step 2: Convert to fraction form
    10,987,549.60/16,499,986.80 = 8,150,864.80/x
  3. Step 3: Cross multiply
    10,987,549.60x = 16,499,986.80 × 8,150,864.80
  4. Step 4: Simplify right side
    10,987,549.60x = 134,489,161,608,584.64
  5. Step 5: Solve for x
    x = 134,489,161,608,584.64/10,987,549.60
  6. Step 6: Final answer
    x = 12,240,141.48

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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.