Finding the Fourth Proportional to 644,603,635.44, 966,904,245.18 and 201,980,202.48
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Solution
The fourth proportional to 644,603,635.44, 966,904,245.18 and 201,980,202.48 is: 302,969,925.21
Step by Step Solution
- Step 1: Write the proportion equation
644,603,635.44 : 966,904,245.18 = 201,980,202.48 : x - Step 2: Convert to fraction form
644,603,635.44/966,904,245.18 = 201,980,202.48/x - Step 3: Cross multiply
644,603,635.44x = 966,904,245.18 × 201,980,202.48 - Step 4: Simplify right side
644,603,635.44x = 195,295,515,220,227,936 - Step 5: Solve for x
x = 195,295,515,220,227,936/644,603,635.44 - Step 6: Final answer
x = 302,969,925.21
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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.