Home / 323,607,656.31-485,358,340.33-139,325,519.58

Finding the Fourth Proportional to 323,607,656.31, 485,358,340.33 and 139,325,519.58

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Solution

The fourth proportional to 323,607,656.31, 485,358,340.33 and 139,325,519.58 is: 208,965,398.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,607,656.31 : 485,358,340.33 = 139,325,519.58 : x
  2. Step 2: Convert to fraction form
    323,607,656.31/485,358,340.33 = 139,325,519.58/x
  3. Step 3: Cross multiply
    323,607,656.31x = 485,358,340.33 × 139,325,519.58
  4. Step 4: Simplify right side
    323,607,656.31x = 67,622,802,948,963,720
  5. Step 5: Solve for x
    x = 67,622,802,948,963,720/323,607,656.31
  6. Step 6: Final answer
    x = 208,965,398.78

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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.