Home / 13,747,819.80-18,972,002.98-7,552,878.48

Finding the Fourth Proportional to 13,747,819.80, 18,972,002.98 and 7,552,878.48

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Solution

The fourth proportional to 13,747,819.80, 18,972,002.98 and 7,552,878.48 is: 10,422,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747,819.80 : 18,972,002.98 = 7,552,878.48 : x
  2. Step 2: Convert to fraction form
    13,747,819.80/18,972,002.98 = 7,552,878.48/x
  3. Step 3: Cross multiply
    13,747,819.80x = 18,972,002.98 × 7,552,878.48
  4. Step 4: Simplify right side
    13,747,819.80x = 143,293,233,030,137.88
  5. Step 5: Solve for x
    x = 143,293,233,030,137.88/13,747,819.80
  6. Step 6: Final answer
    x = 10,422,978.71

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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.