Finding the Fourth Proportional to 13,145,737.89, 18,141,125.97 and 7,344,519.62
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Solution
The fourth proportional to 13,145,737.89, 18,141,125.97 and 7,344,519.62 is: 10,135,441.36
Step by Step Solution
- Step 1: Write the proportion equation
13,145,737.89 : 18,141,125.97 = 7,344,519.62 : x - Step 2: Convert to fraction form
13,145,737.89/18,141,125.97 = 7,344,519.62/x - Step 3: Cross multiply
13,145,737.89x = 18,141,125.97 × 7,344,519.62 - Step 4: Simplify right side
13,145,737.89x = 133,237,855,524,850.89 - Step 5: Solve for x
x = 133,237,855,524,850.89/13,145,737.89 - Step 6: Final answer
x = 10,135,441.36
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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.