Finding the Fourth Proportional to 918,183,615.80, 1,377,275,423.70 and 918,183,615.80
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Solution
The fourth proportional to 918,183,615.80, 1,377,275,423.70 and 918,183,615.80 is: 1,377,275,423.70
Step by Step Solution
- Step 1: Write the proportion equation
918,183,615.80 : 1,377,275,423.70 = 918,183,615.80 : x - Step 2: Convert to fraction form
918,183,615.80/1,377,275,423.70 = 918,183,615.80/x - Step 3: Cross multiply
918,183,615.80x = 1,377,275,423.70 × 918,183,615.80 - Step 4: Simplify right side
918,183,615.80x = 1,264,591,728,485,342,976 - Step 5: Solve for x
x = 1,264,591,728,485,342,976/918,183,615.80 - Step 6: Final answer
x = 1,377,275,423.70
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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.