Home / 5,105,438.28-7,045,375.01-2,782,390.55

Finding the Fourth Proportional to 5,105,438.28, 7,045,375.01 and 2,782,390.55

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Solution

The fourth proportional to 5,105,438.28, 7,045,375.01 and 2,782,390.55 is: 3,839,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105,438.28 : 7,045,375.01 = 2,782,390.55 : x
  2. Step 2: Convert to fraction form
    5,105,438.28/7,045,375.01 = 2,782,390.55/x
  3. Step 3: Cross multiply
    5,105,438.28x = 7,045,375.01 × 2,782,390.55
  4. Step 4: Simplify right side
    5,105,438.28x = 19,602,984,799,891.33
  5. Step 5: Solve for x
    x = 19,602,984,799,891.33/5,105,438.28
  6. Step 6: Final answer
    x = 3,839,628.20

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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.