Finding the Fourth Proportional to 12,286,653.24, 16,958,953.62 and 7,131,675.54
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Solution
The fourth proportional to 12,286,653.24, 16,958,953.62 and 7,131,675.54 is: 9,843,669.58
Step by Step Solution
- Step 1: Write the proportion equation
12,286,653.24 : 16,958,953.62 = 7,131,675.54 : x - Step 2: Convert to fraction form
12,286,653.24/16,958,953.62 = 7,131,675.54/x - Step 3: Cross multiply
12,286,653.24x = 16,958,953.62 × 7,131,675.54 - Step 4: Simplify right side
12,286,653.24x = 120,945,754,715,748.47 - Step 5: Solve for x
x = 120,945,754,715,748.47/12,286,653.24 - Step 6: Final answer
x = 9,843,669.58
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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.