Finding the Fourth Proportional to 21,319,895.76, 31,982,083.92 and 6,944,082.96
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Solution
The fourth proportional to 21,319,895.76, 31,982,083.92 and 6,944,082.96 is: 10,416,854.12
Step by Step Solution
- Step 1: Write the proportion equation
21,319,895.76 : 31,982,083.92 = 6,944,082.96 : x - Step 2: Convert to fraction form
21,319,895.76/31,982,083.92 = 6,944,082.96/x - Step 3: Cross multiply
21,319,895.76x = 31,982,083.92 × 6,944,082.96 - Step 4: Simplify right side
21,319,895.76x = 222,086,243,974,162 - Step 5: Solve for x
x = 222,086,243,974,162/21,319,895.76 - Step 6: Final answer
x = 10,416,854.12
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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.