Finding the Fourth Proportional to 38,578,896.80, 57,787,863.60 and 18,126,072.80
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Solution
The fourth proportional to 38,578,896.80, 57,787,863.60 and 18,126,072.80 is: 27,151,295.38
Step by Step Solution
- Step 1: Write the proportion equation
38,578,896.80 : 57,787,863.60 = 18,126,072.80 : x - Step 2: Convert to fraction form
38,578,896.80/57,787,863.60 = 18,126,072.80/x - Step 3: Cross multiply
38,578,896.80x = 57,787,863.60 × 18,126,072.80 - Step 4: Simplify right side
38,578,896.80x = 1,047,467,022,570,070.12 - Step 5: Solve for x
x = 1,047,467,022,570,070.12/38,578,896.80 - Step 6: Final answer
x = 27,151,295.38
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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.