Finding the Fourth Proportional to 9,119,755.71, 13,712,446.67 and 8,408,795.09
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Solution
The fourth proportional to 9,119,755.71, 13,712,446.67 and 8,408,795.09 is: 12,643,447.67
Step by Step Solution
- Step 1: Write the proportion equation
9,119,755.71 : 13,712,446.67 = 8,408,795.09 : x - Step 2: Convert to fraction form
9,119,755.71/13,712,446.67 = 8,408,795.09/x - Step 3: Cross multiply
9,119,755.71x = 13,712,446.67 × 8,408,795.09 - Step 4: Simplify right side
9,119,755.71x = 115,305,154,119,976.64 - Step 5: Solve for x
x = 115,305,154,119,976.64/9,119,755.71 - Step 6: Final answer
x = 12,643,447.67
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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.