Finding the Fourth Proportional to 18,125,443.24, 27,192,830.46 and 5,345,431.72
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Solution
The fourth proportional to 18,125,443.24, 27,192,830.46 and 5,345,431.72 is: 8,019,523.53
Step by Step Solution
- Step 1: Write the proportion equation
18,125,443.24 : 27,192,830.46 = 5,345,431.72 : x - Step 2: Convert to fraction form
18,125,443.24/27,192,830.46 = 5,345,431.72/x - Step 3: Cross multiply
18,125,443.24x = 27,192,830.46 × 5,345,431.72 - Step 4: Simplify right side
18,125,443.24x = 145,357,418,497,466.19 - Step 5: Solve for x
x = 145,357,418,497,466.19/18,125,443.24 - Step 6: Final answer
x = 8,019,523.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.