Home / 5,128,424.10-7,682,138.55-2,605,500.90

Finding the Fourth Proportional to 5,128,424.10, 7,682,138.55 and 2,605,500.90

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Solution

The fourth proportional to 5,128,424.10, 7,682,138.55 and 2,605,500.90 is: 3,902,918.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128,424.10 : 7,682,138.55 = 2,605,500.90 : x
  2. Step 2: Convert to fraction form
    5,128,424.10/7,682,138.55 = 2,605,500.90/x
  3. Step 3: Cross multiply
    5,128,424.10x = 7,682,138.55 × 2,605,500.90
  4. Step 4: Simplify right side
    5,128,424.10x = 20,015,818,905,949.70
  5. Step 5: Solve for x
    x = 20,015,818,905,949.70/5,128,424.10
  6. Step 6: Final answer
    x = 3,902,918.03

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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.