Finding the Fourth Proportional to 1,890,489,850.66, 2,606,450,874.42 and 1,550,144,405.44
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Solution
The fourth proportional to 1,890,489,850.66, 2,606,450,874.42 and 1,550,144,405.44 is: 2,137,210,754.99
Step by Step Solution
- Step 1: Write the proportion equation
1,890,489,850.66 : 2,606,450,874.42 = 1,550,144,405.44 : x - Step 2: Convert to fraction form
1,890,489,850.66/2,606,450,874.42 = 1,550,144,405.44/x - Step 3: Cross multiply
1,890,489,850.66x = 2,606,450,874.42 × 1,550,144,405.44 - Step 4: Simplify right side
1,890,489,850.66x = 4,040,375,241,036,359,168 - Step 5: Solve for x
x = 4,040,375,241,036,359,168/1,890,489,850.66 - Step 6: Final answer
x = 2,137,210,754.99
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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.