Home / 13,380,467.72-18,463,564.58-7,419,724.65

Finding the Fourth Proportional to 13,380,467.72, 18,463,564.58 and 7,419,724.65

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Solution

The fourth proportional to 13,380,467.72, 18,463,564.58 and 7,419,724.65 is: 10,238,398.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380,467.72 : 18,463,564.58 = 7,419,724.65 : x
  2. Step 2: Convert to fraction form
    13,380,467.72/18,463,564.58 = 7,419,724.65/x
  3. Step 3: Cross multiply
    13,380,467.72x = 18,463,564.58 × 7,419,724.65
  4. Step 4: Simplify right side
    13,380,467.72x = 136,994,565,259,642.22
  5. Step 5: Solve for x
    x = 136,994,565,259,642.22/13,380,467.72
  6. Step 6: Final answer
    x = 10,238,398.85

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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.