Home / 18,189,357.40-27,284,036.10-12,449,794.60

Finding the Fourth Proportional to 18,189,357.40, 27,284,036.10 and 12,449,794.60

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Solution

The fourth proportional to 18,189,357.40, 27,284,036.10 and 12,449,794.60 is: 18,674,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189,357.40 : 27,284,036.10 = 12,449,794.60 : x
  2. Step 2: Convert to fraction form
    18,189,357.40/27,284,036.10 = 12,449,794.60/x
  3. Step 3: Cross multiply
    18,189,357.40x = 27,284,036.10 × 12,449,794.60
  4. Step 4: Simplify right side
    18,189,357.40x = 339,680,645,303,985.06
  5. Step 5: Solve for x
    x = 339,680,645,303,985.06/18,189,357.40
  6. Step 6: Final answer
    x = 18,674,691.90

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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.