Finding the Fourth Proportional to 27,960,431.14, 38,565,518.84 and 18,663,313.70
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Solution
The fourth proportional to 27,960,431.14, 38,565,518.84 and 18,663,313.70 is: 25,742,105.78
Step by Step Solution
- Step 1: Write the proportion equation
27,960,431.14 : 38,565,518.84 = 18,663,313.70 : x - Step 2: Convert to fraction form
27,960,431.14/38,565,518.84 = 18,663,313.70/x - Step 3: Cross multiply
27,960,431.14x = 38,565,518.84 × 18,663,313.70 - Step 4: Simplify right side
27,960,431.14x = 719,760,376,114,180.12 - Step 5: Solve for x
x = 719,760,376,114,180.12/27,960,431.14 - Step 6: Final answer
x = 25,742,105.78
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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.