Finding the Fourth Proportional to 3,953,638,782.08, 5,456,006,552.12 and 2,169,522,091.60
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Solution
The fourth proportional to 3,953,638,782.08, 5,456,006,552.12 and 2,169,522,091.60 is: 2,993,932,273.32
Step by Step Solution
- Step 1: Write the proportion equation
3,953,638,782.08 : 5,456,006,552.12 = 2,169,522,091.60 : x - Step 2: Convert to fraction form
3,953,638,782.08/5,456,006,552.12 = 2,169,522,091.60/x - Step 3: Cross multiply
3,953,638,782.08x = 5,456,006,552.12 × 2,169,522,091.60 - Step 4: Simplify right side
3,953,638,782.08x = 11,836,926,746,714,198,016 - Step 5: Solve for x
x = 11,836,926,746,714,198,016/3,953,638,782.08 - Step 6: Final answer
x = 2,993,932,273.32
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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.