Finding the Fourth Proportional to 13,388,331.34, 18,476,286.97 and 7,586,920.18
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Solution
The fourth proportional to 13,388,331.34, 18,476,286.97 and 7,586,920.18 is: 10,470,170.69
Step by Step Solution
- Step 1: Write the proportion equation
13,388,331.34 : 18,476,286.97 = 7,586,920.18 : x - Step 2: Convert to fraction form
13,388,331.34/18,476,286.97 = 7,586,920.18/x - Step 3: Cross multiply
13,388,331.34x = 18,476,286.97 × 7,586,920.18 - Step 4: Simplify right side
13,388,331.34x = 140,178,114,399,006.05 - Step 5: Solve for x
x = 140,178,114,399,006.05/13,388,331.34 - Step 6: Final answer
x = 10,470,170.69
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1.5x scale
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.