Finding the Fourth Proportional to 4,212,217,243.80, 6,318,325,865.70 and 2,987,777,179.80
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Solution
The fourth proportional to 4,212,217,243.80, 6,318,325,865.70 and 2,987,777,179.80 is: 4,481,665,769.70
Step by Step Solution
- Step 1: Write the proportion equation
4,212,217,243.80 : 6,318,325,865.70 = 2,987,777,179.80 : x - Step 2: Convert to fraction form
4,212,217,243.80/6,318,325,865.70 = 2,987,777,179.80/x - Step 3: Cross multiply
4,212,217,243.80x = 6,318,325,865.70 × 2,987,777,179.80 - Step 4: Simplify right side
4,212,217,243.80x = 18,877,749,836,078,538,752 - Step 5: Solve for x
x = 18,877,749,836,078,538,752/4,212,217,243.80 - Step 6: Final answer
x = 4,481,665,769.70
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1.5x scale
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.