Finding the Fourth Proportional to 8,202,463,817.91, 11,321,221,052.64 and 4,986,690,497.72
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Solution
The fourth proportional to 8,202,463,817.91, 11,321,221,052.64 and 4,986,690,497.72 is: 6,882,739,954.62
Step by Step Solution
- Step 1: Write the proportion equation
8,202,463,817.91 : 11,321,221,052.64 = 4,986,690,497.72 : x - Step 2: Convert to fraction form
8,202,463,817.91/11,321,221,052.64 = 4,986,690,497.72/x - Step 3: Cross multiply
8,202,463,817.91x = 11,321,221,052.64 × 4,986,690,497.72 - Step 4: Simplify right side
8,202,463,817.91x = 56,455,425,445,788,868,608 - Step 5: Solve for x
x = 56,455,425,445,788,868,608/8,202,463,817.91 - Step 6: Final answer
x = 6,882,739,954.62
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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.