Finding the Fourth Proportional to 3,932,756,290.58, 5,427,205,858.49 and 2,124,268,151.56
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Solution
The fourth proportional to 3,932,756,290.58, 5,427,205,858.49 and 2,124,268,151.56 is: 2,931,491,225.31
Step by Step Solution
- Step 1: Write the proportion equation
3,932,756,290.58 : 5,427,205,858.49 = 2,124,268,151.56 : x - Step 2: Convert to fraction form
3,932,756,290.58/5,427,205,858.49 = 2,124,268,151.56/x - Step 3: Cross multiply
3,932,756,290.58x = 5,427,205,858.49 × 2,124,268,151.56 - Step 4: Simplify right side
3,932,756,290.58x = 11,528,840,557,112,397,824 - Step 5: Solve for x
x = 11,528,840,557,112,397,824/3,932,756,290.58 - Step 6: Final answer
x = 2,931,491,225.31
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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.