Finding the Fourth Proportional to 119,815,106,375.96, 165,350,044,291.79 and 66,351,078,893.96
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Solution
The fourth proportional to 119,815,106,375.96, 165,350,044,291.79 and 66,351,078,893.96 is: 91,567,367,135.64
Step by Step Solution
- Step 1: Write the proportion equation
119,815,106,375.96 : 165,350,044,291.79 = 66,351,078,893.96 : x - Step 2: Convert to fraction form
119,815,106,375.96/165,350,044,291.79 = 66,351,078,893.96/x - Step 3: Cross multiply
119,815,106,375.96x = 165,350,044,291.79 × 66,351,078,893.96 - Step 4: Simplify right side
119,815,106,375.96x = 10,971,153,833,923,511,844,864 - Step 5: Solve for x
x = 10,971,153,833,923,511,844,864/119,815,106,375.96 - Step 6: Final answer
x = 91,567,367,135.64
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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.