Home / 538,137,556.66-742,629,799.73-290,618,887.06

Finding the Fourth Proportional to 538,137,556.66, 742,629,799.73 and 290,618,887.06

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Solution

The fourth proportional to 538,137,556.66, 742,629,799.73 and 290,618,887.06 is: 401,054,048.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,137,556.66 : 742,629,799.73 = 290,618,887.06 : x
  2. Step 2: Convert to fraction form
    538,137,556.66/742,629,799.73 = 290,618,887.06/x
  3. Step 3: Cross multiply
    538,137,556.66x = 742,629,799.73 × 290,618,887.06
  4. Step 4: Simplify right side
    538,137,556.66x = 215,822,245,895,123,296
  5. Step 5: Solve for x
    x = 215,822,245,895,123,296/538,137,556.66
  6. Step 6: Final answer
    x = 401,054,048.77

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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.