Finding the Fourth Proportional to 1,770,766,544.40, 2,656,149,816.60 and 543,996,013.20
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Solution
The fourth proportional to 1,770,766,544.40, 2,656,149,816.60 and 543,996,013.20 is: 815,994,019.80
Step by Step Solution
- Step 1: Write the proportion equation
1,770,766,544.40 : 2,656,149,816.60 = 543,996,013.20 : x - Step 2: Convert to fraction form
1,770,766,544.40/2,656,149,816.60 = 543,996,013.20/x - Step 3: Cross multiply
1,770,766,544.40x = 2,656,149,816.60 × 543,996,013.20 - Step 4: Simplify right side
1,770,766,544.40x = 1,444,934,910,692,311,296 - Step 5: Solve for x
x = 1,444,934,910,692,311,296/1,770,766,544.40 - Step 6: Final answer
x = 815,994,019.80
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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.