Home / 10,989,007.20-16,471,846.80-5,305,528.80

Finding the Fourth Proportional to 10,989,007.20, 16,471,846.80 and 5,305,528.80

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Solution

The fourth proportional to 10,989,007.20, 16,471,846.80 and 5,305,528.80 is: 7,952,661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989,007.20 : 16,471,846.80 = 5,305,528.80 : x
  2. Step 2: Convert to fraction form
    10,989,007.20/16,471,846.80 = 5,305,528.80/x
  3. Step 3: Cross multiply
    10,989,007.20x = 16,471,846.80 × 5,305,528.80
  4. Step 4: Simplify right side
    10,989,007.20x = 87,391,857,586,587.84
  5. Step 5: Solve for x
    x = 87,391,857,586,587.84/10,989,007.20
  6. Step 6: Final answer
    x = 7,952,661.78

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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.