Finding the Fourth Proportional to 129,487,906.70, 194,231,860.05 and 129,487,906.70
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Solution
The fourth proportional to 129,487,906.70, 194,231,860.05 and 129,487,906.70 is: 194,231,860.05
Step by Step Solution
- Step 1: Write the proportion equation
129,487,906.70 : 194,231,860.05 = 129,487,906.70 : x - Step 2: Convert to fraction form
129,487,906.70/194,231,860.05 = 129,487,906.70/x - Step 3: Cross multiply
129,487,906.70x = 194,231,860.05 × 129,487,906.70 - Step 4: Simplify right side
129,487,906.70x = 25,150,676,972,321,860 - Step 5: Solve for x
x = 25,150,676,972,321,860/129,487,906.70 - Step 6: Final answer
x = 194,231,860.05
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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.