Finding the Fourth Proportional to 286,216,338.30, 394,988,137.88 and 159,062,375.02
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Solution
The fourth proportional to 286,216,338.30, 394,988,137.88 and 159,062,375.02 is: 219,511,407.66
Step by Step Solution
- Step 1: Write the proportion equation
286,216,338.30 : 394,988,137.88 = 159,062,375.02 : x - Step 2: Convert to fraction form
286,216,338.30/394,988,137.88 = 159,062,375.02/x - Step 3: Cross multiply
286,216,338.30x = 394,988,137.88 × 159,062,375.02 - Step 4: Simplify right side
286,216,338.30x = 62,827,751,315,920,032 - Step 5: Solve for x
x = 62,827,751,315,920,032/286,216,338.30 - Step 6: Final answer
x = 219,511,407.66
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.