Finding the Fourth Proportional to 12,305,505.38, 16,981,497.42 and 6,798,862.49
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Solution
The fourth proportional to 12,305,505.38, 16,981,497.42 and 6,798,862.49 is: 9,382,374.98
Step by Step Solution
- Step 1: Write the proportion equation
12,305,505.38 : 16,981,497.42 = 6,798,862.49 : x - Step 2: Convert to fraction form
12,305,505.38/16,981,497.42 = 6,798,862.49/x - Step 3: Cross multiply
12,305,505.38x = 16,981,497.42 × 6,798,862.49 - Step 4: Simplify right side
12,305,505.38x = 115,454,865,832,869.80 - Step 5: Solve for x
x = 115,454,865,832,869.80/12,305,505.38 - Step 6: Final answer
x = 9,382,374.98
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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.