Finding the Fourth Proportional to 812,469,012,633.64, 1,121,207,958,692.80 and 446,669,439,540.18
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Solution
The fourth proportional to 812,469,012,633.64, 1,121,207,958,692.80 and 446,669,439,540.18 is: 616,404,223,090.20
Step by Step Solution
- Step 1: Write the proportion equation
812,469,012,633.64 : 1,121,207,958,692.80 = 446,669,439,540.18 : x - Step 2: Convert to fraction form
812,469,012,633.64/1,121,207,958,692.80 = 446,669,439,540.18/x - Step 3: Cross multiply
812,469,012,633.64x = 1,121,207,958,692.80 × 446,669,439,540.18 - Step 4: Simplify right side
812,469,012,633.64x = 500,809,330,517,302,245,851,136 - Step 5: Solve for x
x = 500,809,330,517,302,245,851,136/812,469,012,633.64 - Step 6: Final answer
x = 616,404,223,090.20
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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.