Finding the Fourth Proportional to 11,103,696.10, 16,655,544.15 and 8,581,161.70
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Solution
The fourth proportional to 11,103,696.10, 16,655,544.15 and 8,581,161.70 is: 12,871,742.55
Step by Step Solution
- Step 1: Write the proportion equation
11,103,696.10 : 16,655,544.15 = 8,581,161.70 : x - Step 2: Convert to fraction form
11,103,696.10/16,655,544.15 = 8,581,161.70/x - Step 3: Cross multiply
11,103,696.10x = 16,655,544.15 × 8,581,161.70 - Step 4: Simplify right side
11,103,696.10x = 142,923,917,552,639.03 - Step 5: Solve for x
x = 142,923,917,552,639.03/11,103,696.10 - Step 6: Final answer
x = 12,871,742.55
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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.