Home / 13,578,949.09-18,739,173.03-7,384,118.50

Finding the Fourth Proportional to 13,578,949.09, 18,739,173.03 and 7,384,118.50

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Solution

The fourth proportional to 13,578,949.09, 18,739,173.03 and 7,384,118.50 is: 10,190,204.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,949.09 : 18,739,173.03 = 7,384,118.50 : x
  2. Step 2: Convert to fraction form
    13,578,949.09/18,739,173.03 = 7,384,118.50/x
  3. Step 3: Cross multiply
    13,578,949.09x = 18,739,173.03 × 7,384,118.50
  4. Step 4: Simplify right side
    13,578,949.09x = 138,372,274,245,524.06
  5. Step 5: Solve for x
    x = 138,372,274,245,524.06/13,578,949.09
  6. Step 6: Final answer
    x = 10,190,204.95

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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.