Finding the Fourth Proportional to 171,954,295.95, 237,306,890.87 and 129,491,840.21
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Solution
The fourth proportional to 171,954,295.95, 237,306,890.87 and 129,491,840.21 is: 178,706,241.80
Step by Step Solution
- Step 1: Write the proportion equation
171,954,295.95 : 237,306,890.87 = 129,491,840.21 : x - Step 2: Convert to fraction form
171,954,295.95/237,306,890.87 = 129,491,840.21/x - Step 3: Cross multiply
171,954,295.95x = 237,306,890.87 × 129,491,840.21 - Step 4: Simplify right side
171,954,295.95x = 30,729,305,991,920,252 - Step 5: Solve for x
x = 30,729,305,991,920,252/171,954,295.95 - Step 6: Final answer
x = 178,706,241.80
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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.