Finding the Fourth Proportional to 81,656,735.80, 122,485,103.70 and 27,804,047.80
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Solution
The fourth proportional to 81,656,735.80, 122,485,103.70 and 27,804,047.80 is: 41,706,071.70
Step by Step Solution
- Step 1: Write the proportion equation
81,656,735.80 : 122,485,103.70 = 27,804,047.80 : x - Step 2: Convert to fraction form
81,656,735.80/122,485,103.70 = 27,804,047.80/x - Step 3: Cross multiply
81,656,735.80x = 122,485,103.70 × 27,804,047.80 - Step 4: Simplify right side
81,656,735.80x = 3,405,581,678,062,757 - Step 5: Solve for x
x = 3,405,581,678,062,757/81,656,735.80 - Step 6: Final answer
x = 41,706,071.70
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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.