Finding the Fourth Proportional to 87,858,450.79, 121,242,034.43 and 48,164,623.97
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Solution
The fourth proportional to 87,858,450.79, 121,242,034.43 and 48,164,623.97 is: 66,465,740.58
Step by Step Solution
- Step 1: Write the proportion equation
87,858,450.79 : 121,242,034.43 = 48,164,623.97 : x - Step 2: Convert to fraction form
87,858,450.79/121,242,034.43 = 48,164,623.97/x - Step 3: Cross multiply
87,858,450.79x = 121,242,034.43 × 48,164,623.97 - Step 4: Simplify right side
87,858,450.79x = 5,839,576,998,137,801 - Step 5: Solve for x
x = 5,839,576,998,137,801/87,858,450.79 - Step 6: Final answer
x = 66,465,740.58
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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.