Finding the Fourth Proportional to 766,305,775.80, 1,149,458,663.70 and 336,324,079.80
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Solution
The fourth proportional to 766,305,775.80, 1,149,458,663.70 and 336,324,079.80 is: 504,486,119.70
Step by Step Solution
- Step 1: Write the proportion equation
766,305,775.80 : 1,149,458,663.70 = 336,324,079.80 : x - Step 2: Convert to fraction form
766,305,775.80/1,149,458,663.70 = 336,324,079.80/x - Step 3: Cross multiply
766,305,775.80x = 1,149,458,663.70 × 336,324,079.80 - Step 4: Simplify right side
766,305,775.80x = 386,590,627,337,040,192 - Step 5: Solve for x
x = 386,590,627,337,040,192/766,305,775.80 - Step 6: Final answer
x = 504,486,119.70
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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.