Finding the Fourth Proportional to 29,930,688.09, 41,310,961.74 and 19,458,477.36
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Solution
The fourth proportional to 29,930,688.09, 41,310,961.74 and 19,458,477.36 is: 26,856,997.45
Step by Step Solution
- Step 1: Write the proportion equation
29,930,688.09 : 41,310,961.74 = 19,458,477.36 : x - Step 2: Convert to fraction form
29,930,688.09/41,310,961.74 = 19,458,477.36/x - Step 3: Cross multiply
29,930,688.09x = 41,310,961.74 × 19,458,477.36 - Step 4: Simplify right side
29,930,688.09x = 803,848,413,737,616.25 - Step 5: Solve for x
x = 803,848,413,737,616.25/29,930,688.09 - Step 6: Final answer
x = 26,856,997.45
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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.