Home / 20,287,766.54-30,431,647.96-8,928,215.16

Finding the Fourth Proportional to 20,287,766.54, 30,431,647.96 and 8,928,215.16

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Solution

The fourth proportional to 20,287,766.54, 30,431,647.96 and 8,928,215.16 is: 13,392,321.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287,766.54 : 30,431,647.96 = 8,928,215.16 : x
  2. Step 2: Convert to fraction form
    20,287,766.54/30,431,647.96 = 8,928,215.16/x
  3. Step 3: Cross multiply
    20,287,766.54x = 30,431,647.96 × 8,928,215.16
  4. Step 4: Simplify right side
    20,287,766.54x = 271,700,300,660,255.09
  5. Step 5: Solve for x
    x = 271,700,300,660,255.09/20,287,766.54
  6. Step 6: Final answer
    x = 13,392,321.93

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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.