Home / 15,171,538.88-20,918,834.40-12,261,932.48

Finding the Fourth Proportional to 15,171,538.88, 20,918,834.40 and 12,261,932.48

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Solution

The fourth proportional to 15,171,538.88, 20,918,834.40 and 12,261,932.48 is: 16,907,008.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171,538.88 : 20,918,834.40 = 12,261,932.48 : x
  2. Step 2: Convert to fraction form
    15,171,538.88/20,918,834.40 = 12,261,932.48/x
  3. Step 3: Cross multiply
    15,171,538.88x = 20,918,834.40 × 12,261,932.48
  4. Step 4: Simplify right side
    15,171,538.88x = 256,505,334,973,101.31
  5. Step 5: Solve for x
    x = 256,505,334,973,101.31/15,171,538.88
  6. Step 6: Final answer
    x = 16,907,008.38

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1.5x scale

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.