Finding the Fourth Proportional to 3,601,336,965.81, 4,969,738,273.70 and 1,993,863,603.62
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Solution
The fourth proportional to 3,601,336,965.81, 4,969,738,273.70 and 1,993,863,603.62 is: 2,751,472,677.38
Step by Step Solution
- Step 1: Write the proportion equation
3,601,336,965.81 : 4,969,738,273.70 = 1,993,863,603.62 : x - Step 2: Convert to fraction form
3,601,336,965.81/4,969,738,273.70 = 1,993,863,603.62/x - Step 3: Cross multiply
3,601,336,965.81x = 4,969,738,273.70 × 1,993,863,603.62 - Step 4: Simplify right side
3,601,336,965.81x = 9,908,980,263,447,719,936 - Step 5: Solve for x
x = 9,908,980,263,447,719,936/3,601,336,965.81 - Step 6: Final answer
x = 2,751,472,677.38
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Double scale
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1.5x scale
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.