Finding the Fourth Proportional to 20,382,903,453,218, 28,128,405,689,554 and 11,007,700,081,272
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Solution
The fourth proportional to 20,382,903,453,218, 28,128,405,689,554 and 11,007,700,081,272 is: 15,190,625,531,127.26
Step by Step Solution
- Step 1: Write the proportion equation
20,382,903,453,218 : 28,128,405,689,554 = 11,007,700,081,272 : x - Step 2: Convert to fraction form
20,382,903,453,218/28,128,405,689,554 = 11,007,700,081,272/x - Step 3: Cross multiply
20,382,903,453,218x = 28,128,405,689,554 × 11,007,700,081,272 - Step 4: Simplify right side
20,382,903,453,218x = 309,629,053,594,955,358,291,361,792 - Step 5: Solve for x
x = 309,629,053,594,955,358,291,361,792/20,382,903,453,218 - Step 6: Final answer
x = 15,190,625,531,127.26
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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.