Finding the Fourth Proportional to 1,093,431,057.07, 1,508,378,956.94 and 664,154,112.68
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Solution
The fourth proportional to 1,093,431,057.07, 1,508,378,956.94 and 664,154,112.68 is: 916,195,018.66
Step by Step Solution
- Step 1: Write the proportion equation
1,093,431,057.07 : 1,508,378,956.94 = 664,154,112.68 : x - Step 2: Convert to fraction form
1,093,431,057.07/1,508,378,956.94 = 664,154,112.68/x - Step 3: Cross multiply
1,093,431,057.07x = 1,508,378,956.94 × 664,154,112.68 - Step 4: Simplify right side
1,093,431,057.07x = 1,001,796,087,731,669,632 - Step 5: Solve for x
x = 1,001,796,087,731,669,632/1,093,431,057.07 - Step 6: Final answer
x = 916,195,018.66
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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.