Home / 3,978,320.33-5,491,048.95-2,430,885.06

Finding the Fourth Proportional to 3,978,320.33, 5,491,048.95 and 2,430,885.06

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Solution

The fourth proportional to 3,978,320.33, 5,491,048.95 and 2,430,885.06 is: 3,355,212.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,320.33 : 5,491,048.95 = 2,430,885.06 : x
  2. Step 2: Convert to fraction form
    3,978,320.33/5,491,048.95 = 2,430,885.06/x
  3. Step 3: Cross multiply
    3,978,320.33x = 5,491,048.95 × 2,430,885.06
  4. Step 4: Simplify right side
    3,978,320.33x = 13,348,108,856,283.69
  5. Step 5: Solve for x
    x = 13,348,108,856,283.69/3,978,320.33
  6. Step 6: Final answer
    x = 3,355,212.19

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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.