Finding the Fourth Proportional to 272,659,514.70, 409,246,135.20 and 143,359,919.40
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Solution
The fourth proportional to 272,659,514.70, 409,246,135.20 and 143,359,919.40 is: 215,174,933.55
Step by Step Solution
- Step 1: Write the proportion equation
272,659,514.70 : 409,246,135.20 = 143,359,919.40 : x - Step 2: Convert to fraction form
272,659,514.70/409,246,135.20 = 143,359,919.40/x - Step 3: Cross multiply
272,659,514.70x = 409,246,135.20 × 143,359,919.40 - Step 4: Simplify right side
272,659,514.70x = 58,669,492,957,033,504 - Step 5: Solve for x
x = 58,669,492,957,033,504/272,659,514.70 - Step 6: Final answer
x = 215,174,933.55
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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.