Finding the Fourth Proportional to 7,811,218.11, 11,718,697.55 and 3,259,735.05
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Solution
The fourth proportional to 7,811,218.11, 11,718,697.55 and 3,259,735.05 is: 4,890,383.11
Step by Step Solution
- Step 1: Write the proportion equation
7,811,218.11 : 11,718,697.55 = 3,259,735.05 : x - Step 2: Convert to fraction form
7,811,218.11/11,718,697.55 = 3,259,735.05/x - Step 3: Cross multiply
7,811,218.11x = 11,718,697.55 × 3,259,735.05 - Step 4: Simplify right side
7,811,218.11x = 38,199,849,127,785.45 - Step 5: Solve for x
x = 38,199,849,127,785.45/7,811,218.11 - Step 6: Final answer
x = 4,890,383.11
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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.