Finding the Fourth Proportional to 8,212,923,743.40, 12,319,250,990.18 and 2,616,784,810.38
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Solution
The fourth proportional to 8,212,923,743.40, 12,319,250,990.18 and 2,616,784,810.38 is: 3,925,134,321.66
Step by Step Solution
- Step 1: Write the proportion equation
8,212,923,743.40 : 12,319,250,990.18 = 2,616,784,810.38 : x - Step 2: Convert to fraction form
8,212,923,743.40/12,319,250,990.18 = 2,616,784,810.38/x - Step 3: Cross multiply
8,212,923,743.40x = 12,319,250,990.18 × 2,616,784,810.38 - Step 4: Simplify right side
8,212,923,743.40x = 32,236,828,866,361,802,752 - Step 5: Solve for x
x = 32,236,828,866,361,802,752/8,212,923,743.40 - Step 6: Final answer
x = 3,925,134,321.66
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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.