Home / 231,890,772.66-320,163,361.58-178,149,718.78

Finding the Fourth Proportional to 231,890,772.66, 320,163,361.58 and 178,149,718.78

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Solution

The fourth proportional to 231,890,772.66, 320,163,361.58 and 178,149,718.78 is: 245,964,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,890,772.66 : 320,163,361.58 = 178,149,718.78 : x
  2. Step 2: Convert to fraction form
    231,890,772.66/320,163,361.58 = 178,149,718.78/x
  3. Step 3: Cross multiply
    231,890,772.66x = 320,163,361.58 × 178,149,718.78
  4. Step 4: Simplify right side
    231,890,772.66x = 57,037,012,829,136,456
  5. Step 5: Solve for x
    x = 57,037,012,829,136,456/231,890,772.66
  6. Step 6: Final answer
    x = 245,964,995.39

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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.