Home / 13,286,191.80-19,929,287.70-12,110,460.60

Finding the Fourth Proportional to 13,286,191.80, 19,929,287.70 and 12,110,460.60

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Solution

The fourth proportional to 13,286,191.80, 19,929,287.70 and 12,110,460.60 is: 18,165,690.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,191.80 : 19,929,287.70 = 12,110,460.60 : x
  2. Step 2: Convert to fraction form
    13,286,191.80/19,929,287.70 = 12,110,460.60/x
  3. Step 3: Cross multiply
    13,286,191.80x = 19,929,287.70 × 12,110,460.60
  4. Step 4: Simplify right side
    13,286,191.80x = 241,352,853,476,914.59
  5. Step 5: Solve for x
    x = 241,352,853,476,914.59/13,286,191.80
  6. Step 6: Final answer
    x = 18,165,690.90

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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.