Home / 538,137,541.37-742,629,778.67-290,618,871.77

Finding the Fourth Proportional to 538,137,541.37, 742,629,778.67 and 290,618,871.77

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Solution

The fourth proportional to 538,137,541.37, 742,629,778.67 and 290,618,871.77 is: 401,054,027.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,137,541.37 : 742,629,778.67 = 290,618,871.77 : x
  2. Step 2: Convert to fraction form
    538,137,541.37/742,629,778.67 = 290,618,871.77/x
  3. Step 3: Cross multiply
    538,137,541.37x = 742,629,778.67 × 290,618,871.77
  4. Step 4: Simplify right side
    538,137,541.37x = 215,822,228,419,880,192
  5. Step 5: Solve for x
    x = 215,822,228,419,880,192/538,137,541.37
  6. Step 6: Final answer
    x = 401,054,027.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.