Home / 20,829,216.96-28,743,998.38-11,662,187.76

Finding the Fourth Proportional to 20,829,216.96, 28,743,998.38 and 11,662,187.76

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Solution

The fourth proportional to 20,829,216.96, 28,743,998.38 and 11,662,187.76 is: 16,093,639.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829,216.96 : 28,743,998.38 = 11,662,187.76 : x
  2. Step 2: Convert to fraction form
    20,829,216.96/28,743,998.38 = 11,662,187.76/x
  3. Step 3: Cross multiply
    20,829,216.96x = 28,743,998.38 × 11,662,187.76
  4. Step 4: Simplify right side
    20,829,216.96x = 335,217,906,080,695.81
  5. Step 5: Solve for x
    x = 335,217,906,080,695.81/20,829,216.96
  6. Step 6: Final answer
    x = 16,093,639.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.