Home / 20,080,757.67-30,129,659.87-10,972,214.76

Finding the Fourth Proportional to 20,080,757.67, 30,129,659.87 and 10,972,214.76

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Solution

The fourth proportional to 20,080,757.67, 30,129,659.87 and 10,972,214.76 is: 16,462,979.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080,757.67 : 30,129,659.87 = 10,972,214.76 : x
  2. Step 2: Convert to fraction form
    20,080,757.67/30,129,659.87 = 10,972,214.76/x
  3. Step 3: Cross multiply
    20,080,757.67x = 30,129,659.87 × 10,972,214.76
  4. Step 4: Simplify right side
    20,080,757.67x = 330,589,098,739,393.69
  5. Step 5: Solve for x
    x = 330,589,098,739,393.69/20,080,757.67
  6. Step 6: Final answer
    x = 16,462,979.34

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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.