Finding the Fourth Proportional to 215,651,305.08, 323,147,797.30 and 128,040,298.28
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Solution
The fourth proportional to 215,651,305.08, 323,147,797.30 and 128,040,298.28 is: 191,865,012.55
Step by Step Solution
- Step 1: Write the proportion equation
215,651,305.08 : 323,147,797.30 = 128,040,298.28 : x - Step 2: Convert to fraction form
215,651,305.08/323,147,797.30 = 128,040,298.28/x - Step 3: Cross multiply
215,651,305.08x = 323,147,797.30 × 128,040,298.28 - Step 4: Simplify right side
215,651,305.08x = 41,375,940,354,816,984 - Step 5: Solve for x
x = 41,375,940,354,816,984/215,651,305.08 - Step 6: Final answer
x = 191,865,012.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.