Finding the Fourth Proportional to 2,021,876,458.88, 2,790,135,990.68 and 1,129,810,515.73
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Solution
The fourth proportional to 2,021,876,458.88, 2,790,135,990.68 and 1,129,810,515.73 is: 1,559,108,603.67
Step by Step Solution
- Step 1: Write the proportion equation
2,021,876,458.88 : 2,790,135,990.68 = 1,129,810,515.73 : x - Step 2: Convert to fraction form
2,021,876,458.88/2,790,135,990.68 = 1,129,810,515.73/x - Step 3: Cross multiply
2,021,876,458.88x = 2,790,135,990.68 × 1,129,810,515.73 - Step 4: Simplify right side
2,021,876,458.88x = 3,152,324,982,589,502,976 - Step 5: Solve for x
x = 3,152,324,982,589,502,976/2,021,876,458.88 - Step 6: Final answer
x = 1,559,108,603.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.