Finding the Fourth Proportional to 20,204,902.67, 27,882,345.56 and 11,384,808.21
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Solution
The fourth proportional to 20,204,902.67, 27,882,345.56 and 11,384,808.21 is: 15,710,798.60
Step by Step Solution
- Step 1: Write the proportion equation
20,204,902.67 : 27,882,345.56 = 11,384,808.21 : x - Step 2: Convert to fraction form
20,204,902.67/27,882,345.56 = 11,384,808.21/x - Step 3: Cross multiply
20,204,902.67x = 27,882,345.56 × 11,384,808.21 - Step 4: Simplify right side
20,204,902.67x = 317,435,156,588,621 - Step 5: Solve for x
x = 317,435,156,588,621/20,204,902.67 - Step 6: Final answer
x = 15,710,798.60
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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.