Finding the Fourth Proportional to 74,470,170.53, 102,769,781.06 and 40,983,505.09
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Solution
The fourth proportional to 74,470,170.53, 102,769,781.06 and 40,983,505.09 is: 56,557,757.49
Step by Step Solution
- Step 1: Write the proportion equation
74,470,170.53 : 102,769,781.06 = 40,983,505.09 : x - Step 2: Convert to fraction form
74,470,170.53/102,769,781.06 = 40,983,505.09/x - Step 3: Cross multiply
74,470,170.53x = 102,769,781.06 × 40,983,505.09 - Step 4: Simplify right side
74,470,170.53x = 4,211,865,845,170,696 - Step 5: Solve for x
x = 4,211,865,845,170,696/74,470,170.53 - Step 6: Final answer
x = 56,557,757.49
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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.