Home / 20,494,152.78-30,698,711.73-11,948,570.70

Finding the Fourth Proportional to 20,494,152.78, 30,698,711.73 and 11,948,570.70

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Solution

The fourth proportional to 20,494,152.78, 30,698,711.73 and 11,948,570.70 is: 17,898,067.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494,152.78 : 30,698,711.73 = 11,948,570.70 : x
  2. Step 2: Convert to fraction form
    20,494,152.78/30,698,711.73 = 11,948,570.70/x
  3. Step 3: Cross multiply
    20,494,152.78x = 30,698,711.73 × 11,948,570.70
  4. Step 4: Simplify right side
    20,494,152.78x = 366,805,727,504,824.31
  5. Step 5: Solve for x
    x = 366,805,727,504,824.31/20,494,152.78
  6. Step 6: Final answer
    x = 17,898,067.39

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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.