Finding the Fourth Proportional to 313,917,568.38, 470,905,685.62 and 92,589,123.97
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Solution
The fourth proportional to 313,917,568.38, 470,905,685.62 and 92,589,123.97 is: 138,892,337.66
Step by Step Solution
- Step 1: Write the proportion equation
313,917,568.38 : 470,905,685.62 = 92,589,123.97 : x - Step 2: Convert to fraction form
313,917,568.38/470,905,685.62 = 92,589,123.97/x - Step 3: Cross multiply
313,917,568.38x = 470,905,685.62 × 92,589,123.97 - Step 4: Simplify right side
313,917,568.38x = 43,600,744,904,048,024 - Step 5: Solve for x
x = 43,600,744,904,048,024/313,917,568.38 - Step 6: Final answer
x = 138,892,337.66
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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.