Finding the Fourth Proportional to 19,640,578.12, 29,467,813.74 and 6,864,610.12
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Solution
The fourth proportional to 19,640,578.12, 29,467,813.74 and 6,864,610.12 is: 10,299,343.08
Step by Step Solution
- Step 1: Write the proportion equation
19,640,578.12 : 29,467,813.74 = 6,864,610.12 : x - Step 2: Convert to fraction form
19,640,578.12/29,467,813.74 = 6,864,610.12/x - Step 3: Cross multiply
19,640,578.12x = 29,467,813.74 × 6,864,610.12 - Step 4: Simplify right side
19,640,578.12x = 202,285,052,413,879.03 - Step 5: Solve for x
x = 202,285,052,413,879.03/19,640,578.12 - Step 6: Final answer
x = 10,299,343.08
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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.