Finding the Fourth Proportional to 7,862,982,306, 11,796,129,922.26 and 2,550,679,665.18
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Solution
The fourth proportional to 7,862,982,306, 11,796,129,922.26 and 2,550,679,665.18 is: 3,826,556,839.33
Step by Step Solution
- Step 1: Write the proportion equation
7,862,982,306 : 11,796,129,922.26 = 2,550,679,665.18 : x - Step 2: Convert to fraction form
7,862,982,306/11,796,129,922.26 = 2,550,679,665.18/x - Step 3: Cross multiply
7,862,982,306x = 11,796,129,922.26 × 2,550,679,665.18 - Step 4: Simplify right side
7,862,982,306x = 30,088,148,720,529,915,904 - Step 5: Solve for x
x = 30,088,148,720,529,915,904/7,862,982,306 - Step 6: Final answer
x = 3,826,556,839.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.