Home / 538,137,540.37-742,629,777.29-290,618,870.77

Finding the Fourth Proportional to 538,137,540.37, 742,629,777.29 and 290,618,870.77

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Solution

The fourth proportional to 538,137,540.37, 742,629,777.29 and 290,618,870.77 is: 401,054,026.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,137,540.37 : 742,629,777.29 = 290,618,870.77 : x
  2. Step 2: Convert to fraction form
    538,137,540.37/742,629,777.29 = 290,618,870.77/x
  3. Step 3: Cross multiply
    538,137,540.37x = 742,629,777.29 × 290,618,870.77
  4. Step 4: Simplify right side
    538,137,540.37x = 215,822,227,274,743,264
  5. Step 5: Solve for x
    x = 215,822,227,274,743,264/538,137,540.37
  6. Step 6: Final answer
    x = 401,054,026.31

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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.