Home / 231,486,878.28-319,306,584.52-137,334,366.78

Finding the Fourth Proportional to 231,486,878.28, 319,306,584.52 and 137,334,366.78

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Solution

The fourth proportional to 231,486,878.28, 319,306,584.52 and 137,334,366.78 is: 189,435,219.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,486,878.28 : 319,306,584.52 = 137,334,366.78 : x
  2. Step 2: Convert to fraction form
    231,486,878.28/319,306,584.52 = 137,334,366.78/x
  3. Step 3: Cross multiply
    231,486,878.28x = 319,306,584.52 × 137,334,366.78
  4. Step 4: Simplify right side
    231,486,878.28x = 43,851,767,593,738,752
  5. Step 5: Solve for x
    x = 43,851,767,593,738,752/231,486,878.28
  6. Step 6: Final answer
    x = 189,435,219.48

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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.