Home / 12,138,986-16,751,605.20-6,632,242.64

Finding the Fourth Proportional to 12,138,986, 16,751,605.20 and 6,632,242.64

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Solution

The fourth proportional to 12,138,986, 16,751,605.20 and 6,632,242.64 is: 9,152,388.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138,986 : 16,751,605.20 = 6,632,242.64 : x
  2. Step 2: Convert to fraction form
    12,138,986/16,751,605.20 = 6,632,242.64/x
  3. Step 3: Cross multiply
    12,138,986x = 16,751,605.20 × 6,632,242.64
  4. Step 4: Simplify right side
    12,138,986x = 111,100,710,295,885.72
  5. Step 5: Solve for x
    x = 111,100,710,295,885.72/12,138,986
  6. Step 6: Final answer
    x = 9,152,388.04

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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.