Finding the Fourth Proportional to 21,726,894.80, 32,590,342.20 and 8,261,973.20
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Solution
The fourth proportional to 21,726,894.80, 32,590,342.20 and 8,261,973.20 is: 12,392,959.80
Step by Step Solution
- Step 1: Write the proportion equation
21,726,894.80 : 32,590,342.20 = 8,261,973.20 : x - Step 2: Convert to fraction form
21,726,894.80/32,590,342.20 = 8,261,973.20/x - Step 3: Cross multiply
21,726,894.80x = 32,590,342.20 × 8,261,973.20 - Step 4: Simplify right side
21,726,894.80x = 269,260,533,835,229.03 - Step 5: Solve for x
x = 269,260,533,835,229.03/21,726,894.80 - Step 6: Final answer
x = 12,392,959.80
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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.