Finding the Fourth Proportional to 11,145,343.68, 15,366,336.54 and 7,218,161.46
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Solution
The fourth proportional to 11,145,343.68, 15,366,336.54 and 7,218,161.46 is: 9,951,841.90
Step by Step Solution
- Step 1: Write the proportion equation
11,145,343.68 : 15,366,336.54 = 7,218,161.46 : x - Step 2: Convert to fraction form
11,145,343.68/15,366,336.54 = 7,218,161.46/x - Step 3: Cross multiply
11,145,343.68x = 15,366,336.54 × 7,218,161.46 - Step 4: Simplify right side
11,145,343.68x = 110,916,698,194,417.73 - Step 5: Solve for x
x = 110,916,698,194,417.73/11,145,343.68 - Step 6: Final answer
x = 9,951,841.90
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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.