Finding the Fourth Proportional to 3,902,399,941.41, 5,385,317,088.29 and 2,118,252,236.13
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Solution
The fourth proportional to 3,902,399,941.41, 5,385,317,088.29 and 2,118,252,236.13 is: 2,923,190,891.71
Step by Step Solution
- Step 1: Write the proportion equation
3,902,399,941.41 : 5,385,317,088.29 = 2,118,252,236.13 : x - Step 2: Convert to fraction form
3,902,399,941.41/5,385,317,088.29 = 2,118,252,236.13/x - Step 3: Cross multiply
3,902,399,941.41x = 5,385,317,088.29 × 2,118,252,236.13 - Step 4: Simplify right side
3,902,399,941.41x = 11,407,459,964,528,801,792 - Step 5: Solve for x
x = 11,407,459,964,528,801,792/3,902,399,941.41 - Step 6: Final answer
x = 2,923,190,891.71
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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.