Finding the Fourth Proportional to 14,777,686.19, 20,396,606.96 and 8,668,082.99
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Solution
The fourth proportional to 14,777,686.19, 20,396,606.96 and 8,668,082.99 is: 11,963,948.86
Step by Step Solution
- Step 1: Write the proportion equation
14,777,686.19 : 20,396,606.96 = 8,668,082.99 : x - Step 2: Convert to fraction form
14,777,686.19/20,396,606.96 = 8,668,082.99/x - Step 3: Cross multiply
14,777,686.19x = 20,396,606.96 × 8,668,082.99 - Step 4: Simplify right side
14,777,686.19x = 176,799,481,843,691.62 - Step 5: Solve for x
x = 176,799,481,843,691.62/14,777,686.19 - Step 6: Final answer
x = 11,963,948.86
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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.