Finding the Fourth Proportional to 19,498,478.24, 26,935,928.30 and 15,573,080.60
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Solution
The fourth proportional to 19,498,478.24, 26,935,928.30 and 15,573,080.60 is: 21,513,236.95
Step by Step Solution
- Step 1: Write the proportion equation
19,498,478.24 : 26,935,928.30 = 15,573,080.60 : x - Step 2: Convert to fraction form
19,498,478.24/26,935,928.30 = 15,573,080.60/x - Step 3: Cross multiply
19,498,478.24x = 26,935,928.30 × 15,573,080.60 - Step 4: Simplify right side
19,498,478.24x = 419,475,382,451,721 - Step 5: Solve for x
x = 419,475,382,451,721/19,498,478.24 - Step 6: Final answer
x = 21,513,236.95
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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.