Finding the Fourth Proportional to 19,683,181.13, 27,162,806.87 and 10,981,355.08
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Solution
The fourth proportional to 19,683,181.13, 27,162,806.87 and 10,981,355.08 is: 15,154,279.45
Step by Step Solution
- Step 1: Write the proportion equation
19,683,181.13 : 27,162,806.87 = 10,981,355.08 : x - Step 2: Convert to fraction form
19,683,181.13/27,162,806.87 = 10,981,355.08/x - Step 3: Cross multiply
19,683,181.13x = 27,162,806.87 × 10,981,355.08 - Step 4: Simplify right side
19,683,181.13x = 298,284,427,236,386.75 - Step 5: Solve for x
x = 298,284,427,236,386.75/19,683,181.13 - Step 6: Final answer
x = 15,154,279.45
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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.