Finding the Fourth Proportional to 3,968,998,324.50, 5,954,394,407.04 and 1,313,048,174.07
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Solution
The fourth proportional to 3,968,998,324.50, 5,954,394,407.04 and 1,313,048,174.07 is: 1,969,868,985.73
Step by Step Solution
- Step 1: Write the proportion equation
3,968,998,324.50 : 5,954,394,407.04 = 1,313,048,174.07 : x - Step 2: Convert to fraction form
3,968,998,324.50/5,954,394,407.04 = 1,313,048,174.07/x - Step 3: Cross multiply
3,968,998,324.50x = 5,954,394,407.04 × 1,313,048,174.07 - Step 4: Simplify right side
3,968,998,324.50x = 7,818,406,703,856,491,520 - Step 5: Solve for x
x = 7,818,406,703,856,491,520/3,968,998,324.50 - Step 6: Final answer
x = 1,969,868,985.73
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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.