Home / 13,181,386.92-18,192,223.67-7,380,542.49

Finding the Fourth Proportional to 13,181,386.92, 18,192,223.67 and 7,380,542.49

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Solution

The fourth proportional to 13,181,386.92, 18,192,223.67 and 7,380,542.49 is: 10,186,217.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181,386.92 : 18,192,223.67 = 7,380,542.49 : x
  2. Step 2: Convert to fraction form
    13,181,386.92/18,192,223.67 = 7,380,542.49/x
  3. Step 3: Cross multiply
    13,181,386.92x = 18,192,223.67 × 7,380,542.49
  4. Step 4: Simplify right side
    13,181,386.92x = 134,268,479,784,018.75
  5. Step 5: Solve for x
    x = 134,268,479,784,018.75/13,181,386.92
  6. Step 6: Final answer
    x = 10,186,217.93

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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.