Finding the Fourth Proportional to 827,457,646.40, 1,241,186,469.60 and 366,906,939.20
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Solution
The fourth proportional to 827,457,646.40, 1,241,186,469.60 and 366,906,939.20 is: 550,360,408.80
Step by Step Solution
- Step 1: Write the proportion equation
827,457,646.40 : 1,241,186,469.60 = 366,906,939.20 : x - Step 2: Convert to fraction form
827,457,646.40/1,241,186,469.60 = 366,906,939.20/x - Step 3: Cross multiply
827,457,646.40x = 1,241,186,469.60 × 366,906,939.20 - Step 4: Simplify right side
827,457,646.40x = 455,399,928,537,389,824 - Step 5: Solve for x
x = 455,399,928,537,389,824/827,457,646.40 - Step 6: Final answer
x = 550,360,408.80
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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.