Home / 5,105,453.28-7,045,395.72-2,782,405.56

Finding the Fourth Proportional to 5,105,453.28, 7,045,395.72 and 2,782,405.56

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Solution

The fourth proportional to 5,105,453.28, 7,045,395.72 and 2,782,405.56 is: 3,839,648.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105,453.28 : 7,045,395.72 = 2,782,405.56 : x
  2. Step 2: Convert to fraction form
    5,105,453.28/7,045,395.72 = 2,782,405.56/x
  3. Step 3: Cross multiply
    5,105,453.28x = 7,045,395.72 × 2,782,405.56
  4. Step 4: Simplify right side
    5,105,453.28x = 19,603,148,223,728.20
  5. Step 5: Solve for x
    x = 19,603,148,223,728.20/5,105,453.28
  6. Step 6: Final answer
    x = 3,839,648.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.