Finding the Fourth Proportional to 11,879,673.48, 16,391,578.19 and 7,230,344.40
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Solution
The fourth proportional to 11,879,673.48, 16,391,578.19 and 7,230,344.40 is: 9,976,432.07
Step by Step Solution
- Step 1: Write the proportion equation
11,879,673.48 : 16,391,578.19 = 7,230,344.40 : x - Step 2: Convert to fraction form
11,879,673.48/16,391,578.19 = 7,230,344.40/x - Step 3: Cross multiply
11,879,673.48x = 16,391,578.19 × 7,230,344.40 - Step 4: Simplify right side
11,879,673.48x = 118,516,755,537,076.92 - Step 5: Solve for x
x = 118,516,755,537,076.92/11,879,673.48 - Step 6: Final answer
x = 9,976,432.07
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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.