Home / 212,975,361.72-318,622,490.54-161,308,798.92

Finding the Fourth Proportional to 212,975,361.72, 318,622,490.54 and 161,308,798.92

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Solution

The fourth proportional to 212,975,361.72, 318,622,490.54 and 161,308,798.92 is: 241,326,559.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,975,361.72 : 318,622,490.54 = 161,308,798.92 : x
  2. Step 2: Convert to fraction form
    212,975,361.72/318,622,490.54 = 161,308,798.92/x
  3. Step 3: Cross multiply
    212,975,361.72x = 318,622,490.54 × 161,308,798.92
  4. Step 4: Simplify right side
    212,975,361.72x = 51,396,611,257,906,464
  5. Step 5: Solve for x
    x = 51,396,611,257,906,464/212,975,361.72
  6. Step 6: Final answer
    x = 241,326,559.29

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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.