Finding the Fourth Proportional to 18,342,418.40, 27,513,627.60 and 18,058,983.20
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Solution
The fourth proportional to 18,342,418.40, 27,513,627.60 and 18,058,983.20 is: 27,088,474.80
Step by Step Solution
- Step 1: Write the proportion equation
18,342,418.40 : 27,513,627.60 = 18,058,983.20 : x - Step 2: Convert to fraction form
18,342,418.40/27,513,627.60 = 18,058,983.20/x - Step 3: Cross multiply
18,342,418.40x = 27,513,627.60 × 18,058,983.20 - Step 4: Simplify right side
18,342,418.40x = 496,868,138,599,456.31 - Step 5: Solve for x
x = 496,868,138,599,456.31/18,342,418.40 - Step 6: Final answer
x = 27,088,474.80
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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.