Home / 20,786,374.74-28,684,252.73-11,965,450.60

Finding the Fourth Proportional to 20,786,374.74, 28,684,252.73 and 11,965,450.60

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Solution

The fourth proportional to 20,786,374.74, 28,684,252.73 and 11,965,450.60 is: 16,511,778.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,786,374.74 : 28,684,252.73 = 11,965,450.60 : x
  2. Step 2: Convert to fraction form
    20,786,374.74/28,684,252.73 = 11,965,450.60/x
  3. Step 3: Cross multiply
    20,786,374.74x = 28,684,252.73 × 11,965,450.60
  4. Step 4: Simplify right side
    20,786,374.74x = 343,220,009,104,499.12
  5. Step 5: Solve for x
    x = 343,220,009,104,499.12/20,786,374.74
  6. Step 6: Final answer
    x = 16,511,778.19

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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.