Home / 13,380,488.25-18,463,592.86-7,419,745.18

Finding the Fourth Proportional to 13,380,488.25, 18,463,592.86 and 7,419,745.18

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Solution

The fourth proportional to 13,380,488.25, 18,463,592.86 and 7,419,745.18 is: 10,238,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380,488.25 : 18,463,592.86 = 7,419,745.18 : x
  2. Step 2: Convert to fraction form
    13,380,488.25/18,463,592.86 = 7,419,745.18/x
  3. Step 3: Cross multiply
    13,380,488.25x = 18,463,592.86 × 7,419,745.18
  4. Step 4: Simplify right side
    13,380,488.25x = 136,995,154,128,467.41
  5. Step 5: Solve for x
    x = 136,995,154,128,467.41/13,380,488.25
  6. Step 6: Final answer
    x = 10,238,427.15

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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.