Finding the Fourth Proportional to 81,656,734.80, 122,485,102.20 and 27,804,046.80
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Solution
The fourth proportional to 81,656,734.80, 122,485,102.20 and 27,804,046.80 is: 41,706,070.20
Step by Step Solution
- Step 1: Write the proportion equation
81,656,734.80 : 122,485,102.20 = 27,804,046.80 : x - Step 2: Convert to fraction form
81,656,734.80/122,485,102.20 = 27,804,046.80/x - Step 3: Cross multiply
81,656,734.80x = 122,485,102.20 × 27,804,046.80 - Step 4: Simplify right side
81,656,734.80x = 3,405,581,513,871,583 - Step 5: Solve for x
x = 3,405,581,513,871,583/81,656,734.80 - Step 6: Final answer
x = 41,706,070.20
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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.