Finding the Fourth Proportional to 11,877,755.39, 16,391,347.40 and 6,445,247.39
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Solution
The fourth proportional to 11,877,755.39, 16,391,347.40 and 6,445,247.39 is: 8,894,465.79
Step by Step Solution
- Step 1: Write the proportion equation
11,877,755.39 : 16,391,347.40 = 6,445,247.39 : x - Step 2: Convert to fraction form
11,877,755.39/16,391,347.40 = 6,445,247.39/x - Step 3: Cross multiply
11,877,755.39x = 16,391,347.40 × 6,445,247.39 - Step 4: Simplify right side
11,877,755.39x = 105,646,289,016,207.05 - Step 5: Solve for x
x = 105,646,289,016,207.05/11,877,755.39 - Step 6: Final answer
x = 8,894,465.79
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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.