Finding the Fourth Proportional to 699,407,201.70, 980,603,354.70 and 699,407,201.70
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Solution
The fourth proportional to 699,407,201.70, 980,603,354.70 and 699,407,201.70 is: 980,603,354.70
Step by Step Solution
- Step 1: Write the proportion equation
699,407,201.70 : 980,603,354.70 = 699,407,201.70 : x - Step 2: Convert to fraction form
699,407,201.70/980,603,354.70 = 699,407,201.70/x - Step 3: Cross multiply
699,407,201.70x = 980,603,354.70 × 699,407,201.70 - Step 4: Simplify right side
699,407,201.70x = 685,841,048,288,359,680 - Step 5: Solve for x
x = 685,841,048,288,359,680/699,407,201.70 - Step 6: Final answer
x = 980,603,354.70
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.