Home / 12,072,812.80-18,109,219.20-11,222,507.20

Finding the Fourth Proportional to 12,072,812.80, 18,109,219.20 and 11,222,507.20

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Solution

The fourth proportional to 12,072,812.80, 18,109,219.20 and 11,222,507.20 is: 16,833,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072,812.80 : 18,109,219.20 = 11,222,507.20 : x
  2. Step 2: Convert to fraction form
    12,072,812.80/18,109,219.20 = 11,222,507.20/x
  3. Step 3: Cross multiply
    12,072,812.80x = 18,109,219.20 × 11,222,507.20
  4. Step 4: Simplify right side
    12,072,812.80x = 203,230,842,858,378.22
  5. Step 5: Solve for x
    x = 203,230,842,858,378.22/12,072,812.80
  6. Step 6: Final answer
    x = 16,833,760.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.