Finding the Fourth Proportional to 21,107,370.20, 29,128,664.07 and 11,814,709.19
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Solution
The fourth proportional to 21,107,370.20, 29,128,664.07 and 11,814,709.19 is: 16,304,574.74
Step by Step Solution
- Step 1: Write the proportion equation
21,107,370.20 : 29,128,664.07 = 11,814,709.19 : x - Step 2: Convert to fraction form
21,107,370.20/29,128,664.07 = 11,814,709.19/x - Step 3: Cross multiply
21,107,370.20x = 29,128,664.07 × 11,814,709.19 - Step 4: Simplify right side
21,107,370.20x = 344,146,694,934,608.50 - Step 5: Solve for x
x = 344,146,694,934,608.50/21,107,370.20 - Step 6: Final answer
x = 16,304,574.74
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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.