Finding the Fourth Proportional to 112,172,164.48, 154,823,414.99 and 65,777,365.18
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Solution
The fourth proportional to 112,172,164.48, 154,823,414.99 and 65,777,365.18 is: 90,787,909.40
Step by Step Solution
- Step 1: Write the proportion equation
112,172,164.48 : 154,823,414.99 = 65,777,365.18 : x - Step 2: Convert to fraction form
112,172,164.48/154,823,414.99 = 65,777,365.18/x - Step 3: Cross multiply
112,172,164.48x = 154,823,414.99 × 65,777,365.18 - Step 4: Simplify right side
112,172,164.48x = 10,183,876,306,211,916 - Step 5: Solve for x
x = 10,183,876,306,211,916/112,172,164.48 - Step 6: Final answer
x = 90,787,909.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.