Finding the Fourth Proportional to 10,681,391.70, 14,740,239.06 and 5,786,578.77
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Solution
The fourth proportional to 10,681,391.70, 14,740,239.06 and 5,786,578.77 is: 7,985,434.57
Step by Step Solution
- Step 1: Write the proportion equation
10,681,391.70 : 14,740,239.06 = 5,786,578.77 : x - Step 2: Convert to fraction form
10,681,391.70/14,740,239.06 = 5,786,578.77/x - Step 3: Cross multiply
10,681,391.70x = 14,740,239.06 × 5,786,578.77 - Step 4: Simplify right side
10,681,391.70x = 85,295,554,467,049.53 - Step 5: Solve for x
x = 85,295,554,467,049.53/10,681,391.70 - Step 6: Final answer
x = 7,985,434.57
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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.