Home / 3,619,230,469.47-5,428,899,857.97-1,378,401,541.20

Finding the Fourth Proportional to 3,619,230,469.47, 5,428,899,857.97 and 1,378,401,541.20

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Solution

The fourth proportional to 3,619,230,469.47, 5,428,899,857.97 and 1,378,401,541.20 is: 2,067,622,936.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619,230,469.47 : 5,428,899,857.97 = 1,378,401,541.20 : x
  2. Step 2: Convert to fraction form
    3,619,230,469.47/5,428,899,857.97 = 1,378,401,541.20/x
  3. Step 3: Cross multiply
    3,619,230,469.47x = 5,428,899,857.97 × 1,378,401,541.20
  4. Step 4: Simplify right side
    3,619,230,469.47x = 7,483,203,931,246,309,376
  5. Step 5: Solve for x
    x = 7,483,203,931,246,309,376/3,619,230,469.47
  6. Step 6: Final answer
    x = 2,067,622,936.53

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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.