Home / 12,209,125.20-18,313,687.80-9,383,499.60

Finding the Fourth Proportional to 12,209,125.20, 18,313,687.80 and 9,383,499.60

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Solution

The fourth proportional to 12,209,125.20, 18,313,687.80 and 9,383,499.60 is: 14,075,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209,125.20 : 18,313,687.80 = 9,383,499.60 : x
  2. Step 2: Convert to fraction form
    12,209,125.20/18,313,687.80 = 9,383,499.60/x
  3. Step 3: Cross multiply
    12,209,125.20x = 18,313,687.80 × 9,383,499.60
  4. Step 4: Simplify right side
    12,209,125.20x = 171,846,482,145,824.88
  5. Step 5: Solve for x
    x = 171,846,482,145,824.88/12,209,125.20
  6. Step 6: Final answer
    x = 14,075,249.40

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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.