Home / 3,855,771.32-5,316,234.54-3,128,559.80

Finding the Fourth Proportional to 3,855,771.32, 5,316,234.54 and 3,128,559.80

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Solution

The fourth proportional to 3,855,771.32, 5,316,234.54 and 3,128,559.80 is: 4,313,574.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,771.32 : 5,316,234.54 = 3,128,559.80 : x
  2. Step 2: Convert to fraction form
    3,855,771.32/5,316,234.54 = 3,128,559.80/x
  3. Step 3: Cross multiply
    3,855,771.32x = 5,316,234.54 × 3,128,559.80
  4. Step 4: Simplify right side
    3,855,771.32x = 16,632,157,669,215.49
  5. Step 5: Solve for x
    x = 16,632,157,669,215.49/3,855,771.32
  6. Step 6: Final answer
    x = 4,313,574.71

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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.