Home / 15,171,530.88-20,918,823.36-12,261,924.48

Finding the Fourth Proportional to 15,171,530.88, 20,918,823.36 and 12,261,924.48

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Solution

The fourth proportional to 15,171,530.88, 20,918,823.36 and 12,261,924.48 is: 16,906,997.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171,530.88 : 20,918,823.36 = 12,261,924.48 : x
  2. Step 2: Convert to fraction form
    15,171,530.88/20,918,823.36 = 12,261,924.48/x
  3. Step 3: Cross multiply
    15,171,530.88x = 20,918,823.36 × 12,261,924.48
  4. Step 4: Simplify right side
    15,171,530.88x = 256,505,032,250,779.84
  5. Step 5: Solve for x
    x = 256,505,032,250,779.84/15,171,530.88
  6. Step 6: Final answer
    x = 16,906,997.34

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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.