Finding the Fourth Proportional to 151,483,496.68, 209,048,183.94 and 81,868,714.12
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Solution
The fourth proportional to 151,483,496.68, 209,048,183.94 and 81,868,714.12 is: 112,979,343.52
Step by Step Solution
- Step 1: Write the proportion equation
151,483,496.68 : 209,048,183.94 = 81,868,714.12 : x - Step 2: Convert to fraction form
151,483,496.68/209,048,183.94 = 81,868,714.12/x - Step 3: Cross multiply
151,483,496.68x = 209,048,183.94 × 81,868,714.12 - Step 4: Simplify right side
151,483,496.68x = 17,114,506,008,289,036 - Step 5: Solve for x
x = 17,114,506,008,289,036/151,483,496.68 - Step 6: Final answer
x = 112,979,343.52
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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.