Finding the Fourth Proportional to 7,860,289,913.81, 11,786,297,718.99 and 5,373,861,914.43
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Solution
The fourth proportional to 7,860,289,913.81, 11,786,297,718.99 and 5,373,861,914.43 is: 8,057,964,415.91
Step by Step Solution
- Step 1: Write the proportion equation
7,860,289,913.81 : 11,786,297,718.99 = 5,373,861,914.43 : x - Step 2: Convert to fraction form
7,860,289,913.81/11,786,297,718.99 = 5,373,861,914.43/x - Step 3: Cross multiply
7,860,289,913.81x = 11,786,297,718.99 × 5,373,861,914.43 - Step 4: Simplify right side
7,860,289,913.81x = 63,337,936,424,199,675,904 - Step 5: Solve for x
x = 63,337,936,424,199,675,904/7,860,289,913.81 - Step 6: Final answer
x = 8,057,964,415.91
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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.