Home / 20,616,765.60-28,450,357.07-11,449,998.84

Finding the Fourth Proportional to 20,616,765.60, 28,450,357.07 and 11,449,998.84

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Solution

The fourth proportional to 20,616,765.60, 28,450,357.07 and 11,449,998.84 is: 15,800,565.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616,765.60 : 28,450,357.07 = 11,449,998.84 : x
  2. Step 2: Convert to fraction form
    20,616,765.60/28,450,357.07 = 11,449,998.84/x
  3. Step 3: Cross multiply
    20,616,765.60x = 28,450,357.07 × 11,449,998.84
  4. Step 4: Simplify right side
    20,616,765.60x = 325,756,555,449,085.81
  5. Step 5: Solve for x
    x = 325,756,555,449,085.81/20,616,765.60
  6. Step 6: Final answer
    x = 15,800,565.51

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1.5x scale

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.