Finding the Fourth Proportional to 7,981,517,549.16, 11,009,304,324.63 and 5,119,125,915.06
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Solution
The fourth proportional to 7,981,517,549.16, 11,009,304,324.63 and 5,119,125,915.06 is: 7,061,065,107.97
Step by Step Solution
- Step 1: Write the proportion equation
7,981,517,549.16 : 11,009,304,324.63 = 5,119,125,915.06 : x - Step 2: Convert to fraction form
7,981,517,549.16/11,009,304,324.63 = 5,119,125,915.06/x - Step 3: Cross multiply
7,981,517,549.16x = 11,009,304,324.63 × 5,119,125,915.06 - Step 4: Simplify right side
7,981,517,549.16x = 56,358,015,074,995,560,448 - Step 5: Solve for x
x = 56,358,015,074,995,560,448/7,981,517,549.16 - Step 6: Final answer
x = 7,061,065,107.97
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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.