Home / 20,736,074.60-31,104,111.90-11,778,122.60

Finding the Fourth Proportional to 20,736,074.60, 31,104,111.90 and 11,778,122.60

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Solution

The fourth proportional to 20,736,074.60, 31,104,111.90 and 11,778,122.60 is: 17,667,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,074.60 : 31,104,111.90 = 11,778,122.60 : x
  2. Step 2: Convert to fraction form
    20,736,074.60/31,104,111.90 = 11,778,122.60/x
  3. Step 3: Cross multiply
    20,736,074.60x = 31,104,111.90 × 11,778,122.60
  4. Step 4: Simplify right side
    20,736,074.60x = 366,348,043,322,318.94
  5. Step 5: Solve for x
    x = 366,348,043,322,318.94/20,736,074.60
  6. Step 6: Final answer
    x = 17,667,183.90

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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.