Finding the Fourth Proportional to 14,704,020.44, 20,292,108.06 and 8,178,121.79
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Solution
The fourth proportional to 14,704,020.44, 20,292,108.06 and 8,178,121.79 is: 11,286,119.45
Step by Step Solution
- Step 1: Write the proportion equation
14,704,020.44 : 20,292,108.06 = 8,178,121.79 : x - Step 2: Convert to fraction form
14,704,020.44/20,292,108.06 = 8,178,121.79/x - Step 3: Cross multiply
14,704,020.44x = 20,292,108.06 × 8,178,121.79 - Step 4: Simplify right side
14,704,020.44x = 165,951,330,989,060.09 - Step 5: Solve for x
x = 165,951,330,989,060.09/14,704,020.44 - Step 6: Final answer
x = 11,286,119.45
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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.