Home / 20,922,446.88-28,873,321.98-11,503,635.83

Finding the Fourth Proportional to 20,922,446.88, 28,873,321.98 and 11,503,635.83

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Solution

The fourth proportional to 20,922,446.88, 28,873,321.98 and 11,503,635.83 is: 15,875,207.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922,446.88 : 28,873,321.98 = 11,503,635.83 : x
  2. Step 2: Convert to fraction form
    20,922,446.88/28,873,321.98 = 11,503,635.83/x
  3. Step 3: Cross multiply
    20,922,446.88x = 28,873,321.98 × 11,503,635.83
  4. Step 4: Simplify right side
    20,922,446.88x = 332,148,181,289,299.19
  5. Step 5: Solve for x
    x = 332,148,181,289,299.19/20,922,446.88
  6. Step 6: Final answer
    x = 15,875,207.29

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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.