Finding the Fourth Proportional to 1,373,188,511.40, 2,059,782,767.10 and 511,367,173.80
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Solution
The fourth proportional to 1,373,188,511.40, 2,059,782,767.10 and 511,367,173.80 is: 767,050,760.70
Step by Step Solution
- Step 1: Write the proportion equation
1,373,188,511.40 : 2,059,782,767.10 = 511,367,173.80 : x - Step 2: Convert to fraction form
1,373,188,511.40/2,059,782,767.10 = 511,367,173.80/x - Step 3: Cross multiply
1,373,188,511.40x = 2,059,782,767.10 × 511,367,173.80 - Step 4: Simplify right side
1,373,188,511.40x = 1,053,305,292,253,870,592 - Step 5: Solve for x
x = 1,053,305,292,253,870,592/1,373,188,511.40 - Step 6: Final answer
x = 767,050,760.70
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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.