Finding the Fourth Proportional to 1,990,966,382,115, 2,747,504,367,078.30 and 1,112,053,977,141.90
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Solution
The fourth proportional to 1,990,966,382,115, 2,747,504,367,078.30 and 1,112,053,977,141.90 is: 1,534,618,156,323.89
Step by Step Solution
- Step 1: Write the proportion equation
1,990,966,382,115 : 2,747,504,367,078.30 = 1,112,053,977,141.90 : x - Step 2: Convert to fraction form
1,990,966,382,115/2,747,504,367,078.30 = 1,112,053,977,141.90/x - Step 3: Cross multiply
1,990,966,382,115x = 2,747,504,367,078.30 × 1,112,053,977,141.90 - Step 4: Simplify right side
1,990,966,382,115x = 3,055,373,158,624,161,582,546,944 - Step 5: Solve for x
x = 3,055,373,158,624,161,582,546,944/1,990,966,382,115 - Step 6: Final answer
x = 1,534,618,156,323.89
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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.