Finding the Fourth Proportional to 843,703,725.49, 1,164,310,736.21 and 504,612,195.10
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Solution
The fourth proportional to 843,703,725.49, 1,164,310,736.21 and 504,612,195.10 is: 696,364,587.03
Step by Step Solution
- Step 1: Write the proportion equation
843,703,725.49 : 1,164,310,736.21 = 504,612,195.10 : x - Step 2: Convert to fraction form
843,703,725.49/1,164,310,736.21 = 504,612,195.10/x - Step 3: Cross multiply
843,703,725.49x = 1,164,310,736.21 × 504,612,195.10 - Step 4: Simplify right side
843,703,725.49x = 587,525,396,378,275,072 - Step 5: Solve for x
x = 587,525,396,378,275,072/843,703,725.49 - Step 6: Final answer
x = 696,364,587.03
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.