Finding the Fourth Proportional to 33,231,643.80, 49,847,465.70 and 18,115,099.80
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Solution
The fourth proportional to 33,231,643.80, 49,847,465.70 and 18,115,099.80 is: 27,172,649.70
Step by Step Solution
- Step 1: Write the proportion equation
33,231,643.80 : 49,847,465.70 = 18,115,099.80 : x - Step 2: Convert to fraction form
33,231,643.80/49,847,465.70 = 18,115,099.80/x - Step 3: Cross multiply
33,231,643.80x = 49,847,465.70 × 18,115,099.80 - Step 4: Simplify right side
33,231,643.80x = 902,991,815,932,577 - Step 5: Solve for x
x = 902,991,815,932,577/33,231,643.80 - Step 6: Final answer
x = 27,172,649.70
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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.