Finding the Fourth Proportional to 199,589,631.20, 299,384,446.80 and 145,841,919.20
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Solution
The fourth proportional to 199,589,631.20, 299,384,446.80 and 145,841,919.20 is: 218,762,878.80
Step by Step Solution
- Step 1: Write the proportion equation
199,589,631.20 : 299,384,446.80 = 145,841,919.20 : x - Step 2: Convert to fraction form
199,589,631.20/299,384,446.80 = 145,841,919.20/x - Step 3: Cross multiply
199,589,631.20x = 299,384,446.80 × 145,841,919.20 - Step 4: Simplify right side
199,589,631.20x = 43,662,802,299,942,296 - Step 5: Solve for x
x = 43,662,802,299,942,296/199,589,631.20 - Step 6: Final answer
x = 218,762,878.80
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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.