Home / 12,886,805.88-17,783,313.84-7,085,242.44

Finding the Fourth Proportional to 12,886,805.88, 17,783,313.84 and 7,085,242.44

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Solution

The fourth proportional to 12,886,805.88, 17,783,313.84 and 7,085,242.44 is: 9,777,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,805.88 : 17,783,313.84 = 7,085,242.44 : x
  2. Step 2: Convert to fraction form
    12,886,805.88/17,783,313.84 = 7,085,242.44/x
  3. Step 3: Cross multiply
    12,886,805.88x = 17,783,313.84 × 7,085,242.44
  4. Step 4: Simplify right side
    12,886,805.88x = 125,999,089,943,007.38
  5. Step 5: Solve for x
    x = 125,999,089,943,007.38/12,886,805.88
  6. Step 6: Final answer
    x = 9,777,371.61

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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.