Finding the Fourth Proportional to 38,600,620.36, 57,902,792.68 and 12,692,348.05
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Solution
The fourth proportional to 38,600,620.36, 57,902,792.68 and 12,692,348.05 is: 19,039,134.37
Step by Step Solution
- Step 1: Write the proportion equation
38,600,620.36 : 57,902,792.68 = 12,692,348.05 : x - Step 2: Convert to fraction form
38,600,620.36/57,902,792.68 = 12,692,348.05/x - Step 3: Cross multiply
38,600,620.36x = 57,902,792.68 × 12,692,348.05 - Step 4: Simplify right side
38,600,620.36x = 734,922,397,761,552.38 - Step 5: Solve for x
x = 734,922,397,761,552.38/38,600,620.36 - Step 6: Final answer
x = 19,039,134.37
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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.