Finding the Fourth Proportional to 206,012,728, 309,019,202.77 and 76,603,522.99
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Solution
The fourth proportional to 206,012,728, 309,019,202.77 and 76,603,522.99 is: 114,905,325.67
Step by Step Solution
- Step 1: Write the proportion equation
206,012,728 : 309,019,202.77 = 76,603,522.99 : x - Step 2: Convert to fraction form
206,012,728/309,019,202.77 = 76,603,522.99/x - Step 3: Cross multiply
206,012,728x = 309,019,202.77 × 76,603,522.99 - Step 4: Simplify right side
206,012,728x = 23,671,959,603,743,164 - Step 5: Solve for x
x = 23,671,959,603,743,164/206,012,728 - Step 6: Final answer
x = 114,905,325.67
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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.