Home / 487,723,355.36-673,616,833.44-321,203,996

Finding the Fourth Proportional to 487,723,355.36, 673,616,833.44 and 321,203,996

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Solution

The fourth proportional to 487,723,355.36, 673,616,833.44 and 321,203,996 is: 443,629,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,723,355.36 : 673,616,833.44 = 321,203,996 : x
  2. Step 2: Convert to fraction form
    487,723,355.36/673,616,833.44 = 321,203,996/x
  3. Step 3: Cross multiply
    487,723,355.36x = 673,616,833.44 × 321,203,996
  4. Step 4: Simplify right side
    487,723,355.36x = 216,368,418,673,794,432
  5. Step 5: Solve for x
    x = 216,368,418,673,794,432/487,723,355.36
  6. Step 6: Final answer
    x = 443,629,398.30

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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.