Finding the Fourth Proportional to 219,899,631.28, 303,465,129.92 and 120,789,537.08
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Solution
The fourth proportional to 219,899,631.28, 303,465,129.92 and 120,789,537.08 is: 166,691,559.92
Step by Step Solution
- Step 1: Write the proportion equation
219,899,631.28 : 303,465,129.92 = 120,789,537.08 : x - Step 2: Convert to fraction form
219,899,631.28/303,465,129.92 = 120,789,537.08/x - Step 3: Cross multiply
219,899,631.28x = 303,465,129.92 × 120,789,537.08 - Step 4: Simplify right side
219,899,631.28x = 36,655,412,562,958,856 - Step 5: Solve for x
x = 36,655,412,562,958,856/219,899,631.28 - Step 6: Final answer
x = 166,691,559.92
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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.