Home / 20,080,756.67-30,129,658.37-10,972,213.76

Finding the Fourth Proportional to 20,080,756.67, 30,129,658.37 and 10,972,213.76

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Solution

The fourth proportional to 20,080,756.67, 30,129,658.37 and 10,972,213.76 is: 16,462,977.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080,756.67 : 30,129,658.37 = 10,972,213.76 : x
  2. Step 2: Convert to fraction form
    20,080,756.67/30,129,658.37 = 10,972,213.76/x
  3. Step 3: Cross multiply
    20,080,756.67x = 30,129,658.37 × 10,972,213.76
  4. Step 4: Simplify right side
    20,080,756.67x = 330,589,051,945,903.81
  5. Step 5: Solve for x
    x = 330,589,051,945,903.81/20,080,756.67
  6. Step 6: Final answer
    x = 16,462,977.84

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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.