Finding the Fourth Proportional to 213,364,910.18, 294,490,944.02 and 129,715,266.32
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Solution
The fourth proportional to 213,364,910.18, 294,490,944.02 and 129,715,266.32 is: 179,035,864.90
Step by Step Solution
- Step 1: Write the proportion equation
213,364,910.18 : 294,490,944.02 = 129,715,266.32 : x - Step 2: Convert to fraction form
213,364,910.18/294,490,944.02 = 129,715,266.32/x - Step 3: Cross multiply
213,364,910.18x = 294,490,944.02 × 129,715,266.32 - Step 4: Simplify right side
213,364,910.18x = 38,199,971,232,382,504 - Step 5: Solve for x
x = 38,199,971,232,382,504/213,364,910.18 - Step 6: Final answer
x = 179,035,864.90
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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.