Finding the Fourth Proportional to 2,135,763,240.40, 3,203,644,860.60 and 908,623,349.20
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Solution
The fourth proportional to 2,135,763,240.40, 3,203,644,860.60 and 908,623,349.20 is: 1,362,935,023.80
Step by Step Solution
- Step 1: Write the proportion equation
2,135,763,240.40 : 3,203,644,860.60 = 908,623,349.20 : x - Step 2: Convert to fraction form
2,135,763,240.40/3,203,644,860.60 = 908,623,349.20/x - Step 3: Cross multiply
2,135,763,240.40x = 3,203,644,860.60 × 908,623,349.20 - Step 4: Simplify right side
2,135,763,240.40x = 2,910,906,522,885,739,008 - Step 5: Solve for x
x = 2,910,906,522,885,739,008/2,135,763,240.40 - Step 6: Final answer
x = 1,362,935,023.80
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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.