Finding the Fourth Proportional to 3,388,662,121.20, 5,082,993,181.80 and 1,206,840,937.20
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Solution
The fourth proportional to 3,388,662,121.20, 5,082,993,181.80 and 1,206,840,937.20 is: 1,810,261,405.80
Step by Step Solution
- Step 1: Write the proportion equation
3,388,662,121.20 : 5,082,993,181.80 = 1,206,840,937.20 : x - Step 2: Convert to fraction form
3,388,662,121.20/5,082,993,181.80 = 1,206,840,937.20/x - Step 3: Cross multiply
3,388,662,121.20x = 5,082,993,181.80 × 1,206,840,937.20 - Step 4: Simplify right side
3,388,662,121.20x = 6,134,364,255,304,722,432 - Step 5: Solve for x
x = 6,134,364,255,304,722,432/3,388,662,121.20 - Step 6: Final answer
x = 1,810,261,405.80
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1.5x scale
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.