Home / 231,427,347.72-319,348,632.42-137,325,280.20

Finding the Fourth Proportional to 231,427,347.72, 319,348,632.42 and 137,325,280.20

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Solution

The fourth proportional to 231,427,347.72, 319,348,632.42 and 137,325,280.20 is: 189,496,361.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,427,347.72 : 319,348,632.42 = 137,325,280.20 : x
  2. Step 2: Convert to fraction form
    231,427,347.72/319,348,632.42 = 137,325,280.20/x
  3. Step 3: Cross multiply
    231,427,347.72x = 319,348,632.42 × 137,325,280.20
  4. Step 4: Simplify right side
    231,427,347.72x = 43,854,640,428,563,304
  5. Step 5: Solve for x
    x = 43,854,640,428,563,304/231,427,347.72
  6. Step 6: Final answer
    x = 189,496,361.86

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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.