Home / 20,109,626.48-30,160,546.68-7,813,568.72

Finding the Fourth Proportional to 20,109,626.48, 30,160,546.68 and 7,813,568.72

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Solution

The fourth proportional to 20,109,626.48, 30,160,546.68 and 7,813,568.72 is: 11,718,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109,626.48 : 30,160,546.68 = 7,813,568.72 : x
  2. Step 2: Convert to fraction form
    20,109,626.48/30,160,546.68 = 7,813,568.72/x
  3. Step 3: Cross multiply
    20,109,626.48x = 30,160,546.68 × 7,813,568.72
  4. Step 4: Simplify right side
    20,109,626.48x = 235,661,504,116,947.84
  5. Step 5: Solve for x
    x = 235,661,504,116,947.84/20,109,626.48
  6. Step 6: Final answer
    x = 11,718,840.44

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1.5x scale

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.