Finding the Fourth Proportional to 10,731,843.97, 14,805,059.20 and 6,378,456.13
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Solution
The fourth proportional to 10,731,843.97, 14,805,059.20 and 6,378,456.13 is: 8,799,365.78
Step by Step Solution
- Step 1: Write the proportion equation
10,731,843.97 : 14,805,059.20 = 6,378,456.13 : x - Step 2: Convert to fraction form
10,731,843.97/14,805,059.20 = 6,378,456.13/x - Step 3: Cross multiply
10,731,843.97x = 14,805,059.20 × 6,378,456.13 - Step 4: Simplify right side
10,731,843.97x = 94,433,420,609,252.89 - Step 5: Solve for x
x = 94,433,420,609,252.89/10,731,843.97 - Step 6: Final answer
x = 8,799,365.78
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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.