Finding the Fourth Proportional to 1,264,198,255.38, 1,744,597,324.95 and 699,722,343.09
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Solution
The fourth proportional to 1,264,198,255.38, 1,744,597,324.95 and 699,722,343.09 is: 965,618,899.38
Step by Step Solution
- Step 1: Write the proportion equation
1,264,198,255.38 : 1,744,597,324.95 = 699,722,343.09 : x - Step 2: Convert to fraction form
1,264,198,255.38/1,744,597,324.95 = 699,722,343.09/x - Step 3: Cross multiply
1,264,198,255.38x = 1,744,597,324.95 × 699,722,343.09 - Step 4: Simplify right side
1,264,198,255.38x = 1,220,733,727,962,560,256 - Step 5: Solve for x
x = 1,220,733,727,962,560,256/1,264,198,255.38 - Step 6: Final answer
x = 965,618,899.38
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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.