Finding the Fourth Proportional to 807,788,608.05, 1,211,682,912.08 and 316,338,543.30
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Solution
The fourth proportional to 807,788,608.05, 1,211,682,912.08 and 316,338,543.30 is: 474,507,814.95
Step by Step Solution
- Step 1: Write the proportion equation
807,788,608.05 : 1,211,682,912.08 = 316,338,543.30 : x - Step 2: Convert to fraction form
807,788,608.05/1,211,682,912.08 = 316,338,543.30/x - Step 3: Cross multiply
807,788,608.05x = 1,211,682,912.08 × 316,338,543.30 - Step 4: Simplify right side
807,788,608.05x = 383,302,007,347,307,520 - Step 5: Solve for x
x = 383,302,007,347,307,520/807,788,608.05 - Step 6: Final answer
x = 474,507,814.95
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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.