Finding the Fourth Proportional to 1,412,532,843.21, 2,116,862,161.83 and 894,037,745.97
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Solution
The fourth proportional to 1,412,532,843.21, 2,116,862,161.83 and 894,037,745.97 is: 1,339,830,563.79
Step by Step Solution
- Step 1: Write the proportion equation
1,412,532,843.21 : 2,116,862,161.83 = 894,037,745.97 : x - Step 2: Convert to fraction form
1,412,532,843.21/2,116,862,161.83 = 894,037,745.97/x - Step 3: Cross multiply
1,412,532,843.21x = 2,116,862,161.83 × 894,037,745.97 - Step 4: Simplify right side
1,412,532,843.21x = 1,892,554,675,691,674,624 - Step 5: Solve for x
x = 1,892,554,675,691,674,624/1,412,532,843.21 - Step 6: Final answer
x = 1,339,830,563.79
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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.