Home / 538,137,540.87-742,629,777.98-290,618,871.27

Finding the Fourth Proportional to 538,137,540.87, 742,629,777.98 and 290,618,871.27

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Solution

The fourth proportional to 538,137,540.87, 742,629,777.98 and 290,618,871.27 is: 401,054,027.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,137,540.87 : 742,629,777.98 = 290,618,871.27 : x
  2. Step 2: Convert to fraction form
    538,137,540.87/742,629,777.98 = 290,618,871.27/x
  3. Step 3: Cross multiply
    538,137,540.87x = 742,629,777.98 × 290,618,871.27
  4. Step 4: Simplify right side
    538,137,540.87x = 215,822,227,846,585,184
  5. Step 5: Solve for x
    x = 215,822,227,846,585,184/538,137,540.87
  6. Step 6: Final answer
    x = 401,054,027.00

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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.