Finding the Fourth Proportional to 5,180,090,147.70, 7,770,135,221.55 and 3,629,132,733.30
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Solution
The fourth proportional to 5,180,090,147.70, 7,770,135,221.55 and 3,629,132,733.30 is: 5,443,699,099.95
Step by Step Solution
- Step 1: Write the proportion equation
5,180,090,147.70 : 7,770,135,221.55 = 3,629,132,733.30 : x - Step 2: Convert to fraction form
5,180,090,147.70/7,770,135,221.55 = 3,629,132,733.30/x - Step 3: Cross multiply
5,180,090,147.70x = 7,770,135,221.55 × 3,629,132,733.30 - Step 4: Simplify right side
5,180,090,147.70x = 28,198,852,074,694,352,896 - Step 5: Solve for x
x = 28,198,852,074,694,352,896/5,180,090,147.70 - Step 6: Final answer
x = 5,443,699,099.95
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Double scale
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Similar ratio
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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.