Home / 20,621,803.77-28,458,989.96-11,454,446.52

Finding the Fourth Proportional to 20,621,803.77, 28,458,989.96 and 11,454,446.52

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Solution

The fourth proportional to 20,621,803.77, 28,458,989.96 and 11,454,446.52 is: 15,807,636.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,621,803.77 : 28,458,989.96 = 11,454,446.52 : x
  2. Step 2: Convert to fraction form
    20,621,803.77/28,458,989.96 = 11,454,446.52/x
  3. Step 3: Cross multiply
    20,621,803.77x = 28,458,989.96 × 11,454,446.52
  4. Step 4: Simplify right side
    20,621,803.77x = 325,981,978,452,764.69
  5. Step 5: Solve for x
    x = 325,981,978,452,764.69/20,621,803.77
  6. Step 6: Final answer
    x = 15,807,636.52

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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.