Home / 139,044,348-192,040,452.60-91,571,816.88

Finding the Fourth Proportional to 139,044,348, 192,040,452.60 and 91,571,816.88

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Solution

The fourth proportional to 139,044,348, 192,040,452.60 and 91,571,816.88 is: 126,473,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,044,348 : 192,040,452.60 = 91,571,816.88 : x
  2. Step 2: Convert to fraction form
    139,044,348/192,040,452.60 = 91,571,816.88/x
  3. Step 3: Cross multiply
    139,044,348x = 192,040,452.60 × 91,571,816.88
  4. Step 4: Simplify right side
    139,044,348x = 17,585,493,159,039,518
  5. Step 5: Solve for x
    x = 17,585,493,159,039,518/139,044,348
  6. Step 6: Final answer
    x = 126,473,987.70

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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.