Finding the Fourth Proportional to 15,419,411.16, 21,278,470.14 and 8,543,833.08
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Solution
The fourth proportional to 15,419,411.16, 21,278,470.14 and 8,543,833.08 is: 11,790,313.86
Step by Step Solution
- Step 1: Write the proportion equation
15,419,411.16 : 21,278,470.14 = 8,543,833.08 : x - Step 2: Convert to fraction form
15,419,411.16/21,278,470.14 = 8,543,833.08/x - Step 3: Cross multiply
15,419,411.16x = 21,278,470.14 × 8,543,833.08 - Step 4: Simplify right side
15,419,411.16x = 181,799,697,073,924.25 - Step 5: Solve for x
x = 181,799,697,073,924.25/15,419,411.16 - Step 6: Final answer
x = 11,790,313.86
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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.