Finding the Fourth Proportional to 1,060,891,567.20, 1,591,337,350.80 and 544,330,915.20
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Solution
The fourth proportional to 1,060,891,567.20, 1,591,337,350.80 and 544,330,915.20 is: 816,496,372.80
Step by Step Solution
- Step 1: Write the proportion equation
1,060,891,567.20 : 1,591,337,350.80 = 544,330,915.20 : x - Step 2: Convert to fraction form
1,060,891,567.20/1,591,337,350.80 = 544,330,915.20/x - Step 3: Cross multiply
1,060,891,567.20x = 1,591,337,350.80 × 544,330,915.20 - Step 4: Simplify right side
1,060,891,567.20x = 866,214,116,552,907,520 - Step 5: Solve for x
x = 866,214,116,552,907,520/1,060,891,567.20 - Step 6: Final answer
x = 816,496,372.80
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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.