Finding the Fourth Proportional to 18,378,092.10, 27,567,138.15 and 4,914,920.10
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Solution
The fourth proportional to 18,378,092.10, 27,567,138.15 and 4,914,920.10 is: 7,372,380.15
Step by Step Solution
- Step 1: Write the proportion equation
18,378,092.10 : 27,567,138.15 = 4,914,920.10 : x - Step 2: Convert to fraction form
18,378,092.10/27,567,138.15 = 4,914,920.10/x - Step 3: Cross multiply
18,378,092.10x = 27,567,138.15 × 4,914,920.10 - Step 4: Simplify right side
18,378,092.10x = 135,490,281,392,911.80 - Step 5: Solve for x
x = 135,490,281,392,911.80/18,378,092.10 - Step 6: Final answer
x = 7,372,380.15
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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.