Finding the Fourth Proportional to 19,821,163.83, 29,728,202.34 and 12,611,280.93
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Solution
The fourth proportional to 19,821,163.83, 29,728,202.34 and 12,611,280.93 is: 18,914,666.89
Step by Step Solution
- Step 1: Write the proportion equation
19,821,163.83 : 29,728,202.34 = 12,611,280.93 : x - Step 2: Convert to fraction form
19,821,163.83/29,728,202.34 = 12,611,280.93/x - Step 3: Cross multiply
19,821,163.83x = 29,728,202.34 × 12,611,280.93 - Step 4: Simplify right side
19,821,163.83x = 374,910,711,253,623.38 - Step 5: Solve for x
x = 374,910,711,253,623.38/19,821,163.83 - Step 6: Final answer
x = 18,914,666.89
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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.