Finding the Fourth Proportional to 355,966,163.53, 491,233,234.74 and 197,206,602.95
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Solution
The fourth proportional to 355,966,163.53, 491,233,234.74 and 197,206,602.95 is: 272,145,072.78
Step by Step Solution
- Step 1: Write the proportion equation
355,966,163.53 : 491,233,234.74 = 197,206,602.95 : x - Step 2: Convert to fraction form
355,966,163.53/491,233,234.74 = 197,206,602.95/x - Step 3: Cross multiply
355,966,163.53x = 491,233,234.74 × 197,206,602.95 - Step 4: Simplify right side
355,966,163.53x = 96,874,437,479,703,872 - Step 5: Solve for x
x = 96,874,437,479,703,872/355,966,163.53 - Step 6: Final answer
x = 272,145,072.78
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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.