Finding the Fourth Proportional to 14,456,564.97, 19,949,873.45 and 8,261,540.79
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Solution
The fourth proportional to 14,456,564.97, 19,949,873.45 and 8,261,540.79 is: 11,400,819.87
Step by Step Solution
- Step 1: Write the proportion equation
14,456,564.97 : 19,949,873.45 = 8,261,540.79 : x - Step 2: Convert to fraction form
14,456,564.97/19,949,873.45 = 8,261,540.79/x - Step 3: Cross multiply
14,456,564.97x = 19,949,873.45 × 8,261,540.79 - Step 4: Simplify right side
14,456,564.97x = 164,816,693,221,205.31 - Step 5: Solve for x
x = 164,816,693,221,205.31/14,456,564.97 - Step 6: Final answer
x = 11,400,819.87
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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.