Home / 3,980,621.21-5,493,448.77-2,238,836.09

Finding the Fourth Proportional to 3,980,621.21, 5,493,448.77 and 2,238,836.09

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Solution

The fourth proportional to 3,980,621.21, 5,493,448.77 and 2,238,836.09 is: 3,089,701.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980,621.21 : 5,493,448.77 = 2,238,836.09 : x
  2. Step 2: Convert to fraction form
    3,980,621.21/5,493,448.77 = 2,238,836.09/x
  3. Step 3: Cross multiply
    3,980,621.21x = 5,493,448.77 × 2,238,836.09
  4. Step 4: Simplify right side
    3,980,621.21x = 12,298,931,364,842.11
  5. Step 5: Solve for x
    x = 12,298,931,364,842.11/3,980,621.21
  6. Step 6: Final answer
    x = 3,089,701.51

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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.