Home / 20,780,846.92-28,678,841.94-11,614,221.64

Finding the Fourth Proportional to 20,780,846.92, 28,678,841.94 and 11,614,221.64

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Solution

The fourth proportional to 20,780,846.92, 28,678,841.94 and 11,614,221.64 is: 16,028,337.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,780,846.92 : 28,678,841.94 = 11,614,221.64 : x
  2. Step 2: Convert to fraction form
    20,780,846.92/28,678,841.94 = 11,614,221.64/x
  3. Step 3: Cross multiply
    20,780,846.92x = 28,678,841.94 × 11,614,221.64
  4. Step 4: Simplify right side
    20,780,846.92x = 333,082,426,669,687.62
  5. Step 5: Solve for x
    x = 333,082,426,669,687.62/20,780,846.92
  6. Step 6: Final answer
    x = 16,028,337.44

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1.5x scale

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.