Home / 20,096,015.20-30,144,022.80-19,312,194.40

Finding the Fourth Proportional to 20,096,015.20, 30,144,022.80 and 19,312,194.40

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Solution

The fourth proportional to 20,096,015.20, 30,144,022.80 and 19,312,194.40 is: 28,968,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,096,015.20 : 30,144,022.80 = 19,312,194.40 : x
  2. Step 2: Convert to fraction form
    20,096,015.20/30,144,022.80 = 19,312,194.40/x
  3. Step 3: Cross multiply
    20,096,015.20x = 30,144,022.80 × 19,312,194.40
  4. Step 4: Simplify right side
    20,096,015.20x = 582,147,228,311,632.25
  5. Step 5: Solve for x
    x = 582,147,228,311,632.25/20,096,015.20
  6. Step 6: Final answer
    x = 28,968,291.60

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Similar ratio
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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.