Finding the Fourth Proportional to 11,278,047.62, 15,563,288.76 and 6,121,299.26
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Solution
The fourth proportional to 11,278,047.62, 15,563,288.76 and 6,121,299.26 is: 8,447,166.67
Step by Step Solution
- Step 1: Write the proportion equation
11,278,047.62 : 15,563,288.76 = 6,121,299.26 : x - Step 2: Convert to fraction form
11,278,047.62/15,563,288.76 = 6,121,299.26/x - Step 3: Cross multiply
11,278,047.62x = 15,563,288.76 × 6,121,299.26 - Step 4: Simplify right side
11,278,047.62x = 95,267,547,969,754.31 - Step 5: Solve for x
x = 95,267,547,969,754.31/11,278,047.62 - Step 6: Final answer
x = 8,447,166.67
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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.