Finding the Fourth Proportional to 5,135,373.54, 7,086,728.88 and 2,843,485.02
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Solution
The fourth proportional to 5,135,373.54, 7,086,728.88 and 2,843,485.02 is: 3,923,961.37
Step by Step Solution
- Step 1: Write the proportion equation
5,135,373.54 : 7,086,728.88 = 2,843,485.02 : x - Step 2: Convert to fraction form
5,135,373.54/7,086,728.88 = 2,843,485.02/x - Step 3: Cross multiply
5,135,373.54x = 7,086,728.88 × 2,843,485.02 - Step 4: Simplify right side
5,135,373.54x = 20,151,007,411,081.38 - Step 5: Solve for x
x = 20,151,007,411,081.38/5,135,373.54 - Step 6: Final answer
x = 3,923,961.37
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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.