Home / 13,620,166.25-20,379,784.35-10,916,290.67

Finding the Fourth Proportional to 13,620,166.25, 20,379,784.35 and 10,916,290.67

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Solution

The fourth proportional to 13,620,166.25, 20,379,784.35 and 10,916,290.67 is: 16,333,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620,166.25 : 20,379,784.35 = 10,916,290.67 : x
  2. Step 2: Convert to fraction form
    13,620,166.25/20,379,784.35 = 10,916,290.67/x
  3. Step 3: Cross multiply
    13,620,166.25x = 20,379,784.35 × 10,916,290.67
  4. Step 4: Simplify right side
    13,620,166.25x = 222,471,649,756,517.03
  5. Step 5: Solve for x
    x = 222,471,649,756,517.03/13,620,166.25
  6. Step 6: Final answer
    x = 16,333,989.30

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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.