Finding the Fourth Proportional to 12,193,947.84, 18,293,997.30 and 8,606,721.09
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Solution
The fourth proportional to 12,193,947.84, 18,293,997.30 and 8,606,721.09 is: 12,912,252.41
Step by Step Solution
- Step 1: Write the proportion equation
12,193,947.84 : 18,293,997.30 = 8,606,721.09 : x - Step 2: Convert to fraction form
12,193,947.84/18,293,997.30 = 8,606,721.09/x - Step 3: Cross multiply
12,193,947.84x = 18,293,997.30 × 8,606,721.09 - Step 4: Simplify right side
12,193,947.84x = 157,451,332,382,313.06 - Step 5: Solve for x
x = 157,451,332,382,313.06/12,193,947.84 - Step 6: Final answer
x = 12,912,252.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.