Finding the Fourth Proportional to 1,994,548,163.40, 2,991,822,245.10 and 1,887,409,657.80
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Solution
The fourth proportional to 1,994,548,163.40, 2,991,822,245.10 and 1,887,409,657.80 is: 2,831,114,486.70
Step by Step Solution
- Step 1: Write the proportion equation
1,994,548,163.40 : 2,991,822,245.10 = 1,887,409,657.80 : x - Step 2: Convert to fraction form
1,994,548,163.40/2,991,822,245.10 = 1,887,409,657.80/x - Step 3: Cross multiply
1,994,548,163.40x = 2,991,822,245.10 × 1,887,409,657.80 - Step 4: Simplify right side
1,994,548,163.40x = 5,646,794,199,822,618,624 - Step 5: Solve for x
x = 5,646,794,199,822,618,624/1,994,548,163.40 - Step 6: Final answer
x = 2,831,114,486.70
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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.