Finding the Fourth Proportional to 2,755,431,876, 4,135,084,656.32 and 2,491,985,972.64
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Solution
The fourth proportional to 2,755,431,876, 4,135,084,656.32 and 2,491,985,972.64 is: 3,739,730,620.45
Step by Step Solution
- Step 1: Write the proportion equation
2,755,431,876 : 4,135,084,656.32 = 2,491,985,972.64 : x - Step 2: Convert to fraction form
2,755,431,876/4,135,084,656.32 = 2,491,985,972.64/x - Step 3: Cross multiply
2,755,431,876x = 4,135,084,656.32 × 2,491,985,972.64 - Step 4: Simplify right side
2,755,431,876x = 10,304,572,959,228,336,128 - Step 5: Solve for x
x = 10,304,572,959,228,336,128/2,755,431,876 - Step 6: Final answer
x = 3,739,730,620.45
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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.