Finding the Fourth Proportional to 804,816,307.40, 1,207,224,461.10 and 544,622,793.80
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Solution
The fourth proportional to 804,816,307.40, 1,207,224,461.10 and 544,622,793.80 is: 816,934,190.70
Step by Step Solution
- Step 1: Write the proportion equation
804,816,307.40 : 1,207,224,461.10 = 544,622,793.80 : x - Step 2: Convert to fraction form
804,816,307.40/1,207,224,461.10 = 544,622,793.80/x - Step 3: Cross multiply
804,816,307.40x = 1,207,224,461.10 × 544,622,793.80 - Step 4: Simplify right side
804,816,307.40x = 657,481,958,747,981,312 - Step 5: Solve for x
x = 657,481,958,747,981,312/804,816,307.40 - Step 6: Final answer
x = 816,934,190.70
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.