Finding the Fourth Proportional to 2,138,914,024.52, 3,206,106,629.69 and 719,459,880.75
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Solution
The fourth proportional to 2,138,914,024.52, 3,206,106,629.69 and 719,459,880.75 is: 1,078,428,149.53
Step by Step Solution
- Step 1: Write the proportion equation
2,138,914,024.52 : 3,206,106,629.69 = 719,459,880.75 : x - Step 2: Convert to fraction form
2,138,914,024.52/3,206,106,629.69 = 719,459,880.75/x - Step 3: Cross multiply
2,138,914,024.52x = 3,206,106,629.69 × 719,459,880.75 - Step 4: Simplify right side
2,138,914,024.52x = 2,306,665,093,468,551,680 - Step 5: Solve for x
x = 2,306,665,093,468,551,680/2,138,914,024.52 - Step 6: Final answer
x = 1,078,428,149.53
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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.