Finding the Fourth Proportional to 3,989,088,229.80, 5,983,632,344.70 and 1,812,305,893.80
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Solution
The fourth proportional to 3,989,088,229.80, 5,983,632,344.70 and 1,812,305,893.80 is: 2,718,458,840.70
Step by Step Solution
- Step 1: Write the proportion equation
3,989,088,229.80 : 5,983,632,344.70 = 1,812,305,893.80 : x - Step 2: Convert to fraction form
3,989,088,229.80/5,983,632,344.70 = 1,812,305,893.80/x - Step 3: Cross multiply
3,989,088,229.80x = 5,983,632,344.70 × 1,812,305,893.80 - Step 4: Simplify right side
3,989,088,229.80x = 10,844,172,164,632,123,392 - Step 5: Solve for x
x = 10,844,172,164,632,123,392/3,989,088,229.80 - Step 6: Final answer
x = 2,718,458,840.70
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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.