Finding the Fourth Proportional to 7,789,136,584.96, 11,683,794,631.38 and 2,815,236,186.40
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Solution
The fourth proportional to 7,789,136,584.96, 11,683,794,631.38 and 2,815,236,186.40 is: 4,222,886,719.47
Step by Step Solution
- Step 1: Write the proportion equation
7,789,136,584.96 : 11,683,794,631.38 = 2,815,236,186.40 : x - Step 2: Convert to fraction form
7,789,136,584.96/11,683,794,631.38 = 2,815,236,186.40/x - Step 3: Cross multiply
7,789,136,584.96x = 11,683,794,631.38 × 2,815,236,186.40 - Step 4: Simplify right side
7,789,136,584.96x = 32,892,641,440,727,023,616 - Step 5: Solve for x
x = 32,892,641,440,727,023,616/7,789,136,584.96 - Step 6: Final answer
x = 4,222,886,719.47
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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.