Finding the Fourth Proportional to 13,277,939.40, 18,325,302.48 and 7,477,855.02
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Solution
The fourth proportional to 13,277,939.40, 18,325,302.48 and 7,477,855.02 is: 10,320,423.30
Step by Step Solution
- Step 1: Write the proportion equation
13,277,939.40 : 18,325,302.48 = 7,477,855.02 : x - Step 2: Convert to fraction form
13,277,939.40/18,325,302.48 = 7,477,855.02/x - Step 3: Cross multiply
13,277,939.40x = 18,325,302.48 × 7,477,855.02 - Step 4: Simplify right side
13,277,939.40x = 137,033,955,143,086.44 - Step 5: Solve for x
x = 137,033,955,143,086.44/13,277,939.40 - Step 6: Final answer
x = 10,320,423.30
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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.