Finding the Fourth Proportional to 123,268,578.84, 170,107,382.94 and 70,344,337.92
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Solution
The fourth proportional to 123,268,578.84, 170,107,382.94 and 70,344,337.92 is: 97,073,328.34
Step by Step Solution
- Step 1: Write the proportion equation
123,268,578.84 : 170,107,382.94 = 70,344,337.92 : x - Step 2: Convert to fraction form
123,268,578.84/170,107,382.94 = 70,344,337.92/x - Step 3: Cross multiply
123,268,578.84x = 170,107,382.94 × 70,344,337.92 - Step 4: Simplify right side
123,268,578.84x = 11,966,091,228,218,204 - Step 5: Solve for x
x = 11,966,091,228,218,204/123,268,578.84 - Step 6: Final answer
x = 97,073,328.34
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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.