Finding the Fourth Proportional to 10,939,788.38, 15,106,591.42 and 6,816,855.98
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Solution
The fourth proportional to 10,939,788.38, 15,106,591.42 and 6,816,855.98 is: 9,413,295.25
Step by Step Solution
- Step 1: Write the proportion equation
10,939,788.38 : 15,106,591.42 = 6,816,855.98 : x - Step 2: Convert to fraction form
10,939,788.38/15,106,591.42 = 6,816,855.98/x - Step 3: Cross multiply
10,939,788.38x = 15,106,591.42 × 6,816,855.98 - Step 4: Simplify right side
10,939,788.38x = 102,979,457,986,992.92 - Step 5: Solve for x
x = 102,979,457,986,992.92/10,939,788.38 - Step 6: Final answer
x = 9,413,295.25
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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.