Home / 7,638,380.21-10,540,754.39-4,200,621.23

Finding the Fourth Proportional to 7,638,380.21, 10,540,754.39 and 4,200,621.23

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Solution

The fourth proportional to 7,638,380.21, 10,540,754.39 and 4,200,621.23 is: 5,796,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638,380.21 : 10,540,754.39 = 4,200,621.23 : x
  2. Step 2: Convert to fraction form
    7,638,380.21/10,540,754.39 = 4,200,621.23/x
  3. Step 3: Cross multiply
    7,638,380.21x = 10,540,754.39 × 4,200,621.23
  4. Step 4: Simplify right side
    7,638,380.21x = 44,277,716,628,647.48
  5. Step 5: Solve for x
    x = 44,277,716,628,647.48/7,638,380.21
  6. Step 6: Final answer
    x = 5,796,741.64

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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.