Finding the Fourth Proportional to 18,685,040.08, 25,785,319.50 and 10,424,610.82
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Solution
The fourth proportional to 18,685,040.08, 25,785,319.50 and 10,424,610.82 is: 14,385,942.95
Step by Step Solution
- Step 1: Write the proportion equation
18,685,040.08 : 25,785,319.50 = 10,424,610.82 : x - Step 2: Convert to fraction form
18,685,040.08/25,785,319.50 = 10,424,610.82/x - Step 3: Cross multiply
18,685,040.08x = 25,785,319.50 × 10,424,610.82 - Step 4: Simplify right side
18,685,040.08x = 268,801,920,656,857 - Step 5: Solve for x
x = 268,801,920,656,857/18,685,040.08 - Step 6: Final answer
x = 14,385,942.95
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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.