Home / 18,378,570.78-27,567,849.69-4,915,048.86

Finding the Fourth Proportional to 18,378,570.78, 27,567,849.69 and 4,915,048.86

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Solution

The fourth proportional to 18,378,570.78, 27,567,849.69 and 4,915,048.86 is: 7,372,571.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378,570.78 : 27,567,849.69 = 4,915,048.86 : x
  2. Step 2: Convert to fraction form
    18,378,570.78/27,567,849.69 = 4,915,048.86/x
  3. Step 3: Cross multiply
    18,378,570.78x = 27,567,849.69 × 4,915,048.86
  4. Step 4: Simplify right side
    18,378,570.78x = 135,497,328,191,485.88
  5. Step 5: Solve for x
    x = 135,497,328,191,485.88/18,378,570.78
  6. Step 6: Final answer
    x = 7,372,571.56

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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.