Finding the Fourth Proportional to 28,661,439.36, 39,552,514.08 and 15,608,916
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Solution
The fourth proportional to 28,661,439.36, 39,552,514.08 and 15,608,916 is: 21,540,155.82
Step by Step Solution
- Step 1: Write the proportion equation
28,661,439.36 : 39,552,514.08 = 15,608,916 : x - Step 2: Convert to fraction form
28,661,439.36/39,552,514.08 = 15,608,916/x - Step 3: Cross multiply
28,661,439.36x = 39,552,514.08 × 15,608,916 - Step 4: Simplify right side
28,661,439.36x = 617,371,869,863,537.25 - Step 5: Solve for x
x = 617,371,869,863,537.25/28,661,439.36 - Step 6: Final answer
x = 21,540,155.82
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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.