Finding the Fourth Proportional to 68,707,123.84, 94,816,027.56 and 39,338,906.88
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Solution
The fourth proportional to 68,707,123.84, 94,816,027.56 and 39,338,906.88 is: 54,287,804.09
Step by Step Solution
- Step 1: Write the proportion equation
68,707,123.84 : 94,816,027.56 = 39,338,906.88 : x - Step 2: Convert to fraction form
68,707,123.84/94,816,027.56 = 39,338,906.88/x - Step 3: Cross multiply
68,707,123.84x = 94,816,027.56 × 39,338,906.88 - Step 4: Simplify right side
68,707,123.84x = 3,729,958,878,914,354 - Step 5: Solve for x
x = 3,729,958,878,914,354/68,707,123.84 - Step 6: Final answer
x = 54,287,804.09
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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.