Home / 36,720,609.60-55,080,914.40-12,786,081.60

Finding the Fourth Proportional to 36,720,609.60, 55,080,914.40 and 12,786,081.60

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Solution

The fourth proportional to 36,720,609.60, 55,080,914.40 and 12,786,081.60 is: 19,179,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,720,609.60 : 55,080,914.40 = 12,786,081.60 : x
  2. Step 2: Convert to fraction form
    36,720,609.60/55,080,914.40 = 12,786,081.60/x
  3. Step 3: Cross multiply
    36,720,609.60x = 55,080,914.40 × 12,786,081.60
  4. Step 4: Simplify right side
    36,720,609.60x = 704,269,066,121,015
  5. Step 5: Solve for x
    x = 704,269,066,121,015/36,720,609.60
  6. Step 6: Final answer
    x = 19,179,122.40

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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.