Finding the Fourth Proportional to 8,378,632,701.76, 12,571,013,611.68 and 3,898,863,860.96
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Solution
The fourth proportional to 8,378,632,701.76, 12,571,013,611.68 and 3,898,863,860.96 is: 5,849,721,835.39
Step by Step Solution
- Step 1: Write the proportion equation
8,378,632,701.76 : 12,571,013,611.68 = 3,898,863,860.96 : x - Step 2: Convert to fraction form
8,378,632,701.76/12,571,013,611.68 = 3,898,863,860.96/x - Step 3: Cross multiply
8,378,632,701.76x = 12,571,013,611.68 × 3,898,863,860.96 - Step 4: Simplify right side
8,378,632,701.76x = 49,012,670,666,215,399,424 - Step 5: Solve for x
x = 49,012,670,666,215,399,424/8,378,632,701.76 - Step 6: Final answer
x = 5,849,721,835.39
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1.5x scale
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.