Home / 18,379,042.36-25,362,661.74-11,507,316.28

Finding the Fourth Proportional to 18,379,042.36, 25,362,661.74 and 11,507,316.28

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Solution

The fourth proportional to 18,379,042.36, 25,362,661.74 and 11,507,316.28 is: 15,879,835.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379,042.36 : 25,362,661.74 = 11,507,316.28 : x
  2. Step 2: Convert to fraction form
    18,379,042.36/25,362,661.74 = 11,507,316.28/x
  3. Step 3: Cross multiply
    18,379,042.36x = 25,362,661.74 × 11,507,316.28
  4. Step 4: Simplify right side
    18,379,042.36x = 291,856,170,344,835.06
  5. Step 5: Solve for x
    x = 291,856,170,344,835.06/18,379,042.36
  6. Step 6: Final answer
    x = 15,879,835.56

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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.