Home / 18,372,237.10-27,558,355.65-11,989,696.30

Finding the Fourth Proportional to 18,372,237.10, 27,558,355.65 and 11,989,696.30

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Solution

The fourth proportional to 18,372,237.10, 27,558,355.65 and 11,989,696.30 is: 17,984,544.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372,237.10 : 27,558,355.65 = 11,989,696.30 : x
  2. Step 2: Convert to fraction form
    18,372,237.10/27,558,355.65 = 11,989,696.30/x
  3. Step 3: Cross multiply
    18,372,237.10x = 27,558,355.65 × 11,989,696.30
  4. Step 4: Simplify right side
    18,372,237.10x = 330,416,314,770,889.12
  5. Step 5: Solve for x
    x = 330,416,314,770,889.12/18,372,237.10
  6. Step 6: Final answer
    x = 17,984,544.45

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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.