Home / 12,878,877.69-19,327,173.82-5,305,843.44

Finding the Fourth Proportional to 12,878,877.69, 19,327,173.82 and 5,305,843.44

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Solution

The fourth proportional to 12,878,877.69, 19,327,173.82 and 5,305,843.44 is: 7,962,414.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,877.69 : 19,327,173.82 = 5,305,843.44 : x
  2. Step 2: Convert to fraction form
    12,878,877.69/19,327,173.82 = 5,305,843.44/x
  3. Step 3: Cross multiply
    12,878,877.69x = 19,327,173.82 × 5,305,843.44
  4. Step 4: Simplify right side
    12,878,877.69x = 102,546,958,413,322.14
  5. Step 5: Solve for x
    x = 102,546,958,413,322.14/12,878,877.69
  6. Step 6: Final answer
    x = 7,962,414.19

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1.5x scale

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.