Finding the Fourth Proportional to 20,019,175.12, 29,882,258.42 and 17,197,420.24
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Solution
The fourth proportional to 20,019,175.12, 29,882,258.42 and 17,197,420.24 is: 25,670,276.26
Step by Step Solution
- Step 1: Write the proportion equation
20,019,175.12 : 29,882,258.42 = 17,197,420.24 : x - Step 2: Convert to fraction form
20,019,175.12/29,882,258.42 = 17,197,420.24/x - Step 3: Cross multiply
20,019,175.12x = 29,882,258.42 × 17,197,420.24 - Step 4: Simplify right side
20,019,175.12x = 513,897,755,769,018.38 - Step 5: Solve for x
x = 513,897,755,769,018.38/20,019,175.12 - Step 6: Final answer
x = 25,670,276.26
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.