Home / 12,860,945.16-17,747,629.07-6,980,453.09

Finding the Fourth Proportional to 12,860,945.16, 17,747,629.07 and 6,980,453.09

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Solution

The fourth proportional to 12,860,945.16, 17,747,629.07 and 6,980,453.09 is: 9,632,767.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860,945.16 : 17,747,629.07 = 6,980,453.09 : x
  2. Step 2: Convert to fraction form
    12,860,945.16/17,747,629.07 = 6,980,453.09/x
  3. Step 3: Cross multiply
    12,860,945.16x = 17,747,629.07 × 6,980,453.09
  4. Step 4: Simplify right side
    12,860,945.16x = 123,886,492,101,842.73
  5. Step 5: Solve for x
    x = 123,886,492,101,842.73/12,860,945.16
  6. Step 6: Final answer
    x = 9,632,767.31

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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.