Finding the Fourth Proportional to 1,992,994,230.80, 2,989,491,346.20 and 1,847,875,408.40
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Solution
The fourth proportional to 1,992,994,230.80, 2,989,491,346.20 and 1,847,875,408.40 is: 2,771,813,112.60
Step by Step Solution
- Step 1: Write the proportion equation
1,992,994,230.80 : 2,989,491,346.20 = 1,847,875,408.40 : x - Step 2: Convert to fraction form
1,992,994,230.80/2,989,491,346.20 = 1,847,875,408.40/x - Step 3: Cross multiply
1,992,994,230.80x = 2,989,491,346.20 × 1,847,875,408.40 - Step 4: Simplify right side
1,992,994,230.80x = 5,524,207,542,267,590,656 - Step 5: Solve for x
x = 5,524,207,542,267,590,656/1,992,994,230.80 - Step 6: Final answer
x = 2,771,813,112.60
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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.