Home / 20,886,715.68-31,324,757.76-6,507,103.20

Finding the Fourth Proportional to 20,886,715.68, 31,324,757.76 and 6,507,103.20

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Solution

The fourth proportional to 20,886,715.68, 31,324,757.76 and 6,507,103.20 is: 9,758,998.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886,715.68 : 31,324,757.76 = 6,507,103.20 : x
  2. Step 2: Convert to fraction form
    20,886,715.68/31,324,757.76 = 6,507,103.20/x
  3. Step 3: Cross multiply
    20,886,715.68x = 31,324,757.76 × 6,507,103.20
  4. Step 4: Simplify right side
    20,886,715.68x = 203,833,431,459,320.84
  5. Step 5: Solve for x
    x = 203,833,431,459,320.84/20,886,715.68
  6. Step 6: Final answer
    x = 9,758,998.71

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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.