Home / 18,719,949.90-28,082,942.18-5,766,094.55

Finding the Fourth Proportional to 18,719,949.90, 28,082,942.18 and 5,766,094.55

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Solution

The fourth proportional to 18,719,949.90, 28,082,942.18 and 5,766,094.55 is: 8,650,071.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719,949.90 : 28,082,942.18 = 5,766,094.55 : x
  2. Step 2: Convert to fraction form
    18,719,949.90/28,082,942.18 = 5,766,094.55/x
  3. Step 3: Cross multiply
    18,719,949.90x = 28,082,942.18 × 5,766,094.55
  4. Step 4: Simplify right side
    18,719,949.90x = 161,928,899,682,817.94
  5. Step 5: Solve for x
    x = 161,928,899,682,817.94/18,719,949.90
  6. Step 6: Final answer
    x = 8,650,071.21

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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.