Home / 3,980,807.78-5,961,837.63-2,629,619.03

Finding the Fourth Proportional to 3,980,807.78, 5,961,837.63 and 2,629,619.03

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Solution

The fourth proportional to 3,980,807.78, 5,961,837.63 and 2,629,619.03 is: 3,938,236.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980,807.78 : 5,961,837.63 = 2,629,619.03 : x
  2. Step 2: Convert to fraction form
    3,980,807.78/5,961,837.63 = 2,629,619.03/x
  3. Step 3: Cross multiply
    3,980,807.78x = 5,961,837.63 × 2,629,619.03
  4. Step 4: Simplify right side
    3,980,807.78x = 15,677,361,710,383.77
  5. Step 5: Solve for x
    x = 15,677,361,710,383.77/3,980,807.78
  6. Step 6: Final answer
    x = 3,938,236.31

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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.