Finding the Fourth Proportional to 11,198,608.23, 15,445,828.56 and 8,445,411.68
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Solution
The fourth proportional to 11,198,608.23, 15,445,828.56 and 8,445,411.68 is: 11,648,445.80
Step by Step Solution
- Step 1: Write the proportion equation
11,198,608.23 : 15,445,828.56 = 8,445,411.68 : x - Step 2: Convert to fraction form
11,198,608.23/15,445,828.56 = 8,445,411.68/x - Step 3: Cross multiply
11,198,608.23x = 15,445,828.56 × 8,445,411.68 - Step 4: Simplify right side
11,198,608.23x = 130,446,380,966,516.14 - Step 5: Solve for x
x = 130,446,380,966,516.14/11,198,608.23 - Step 6: Final answer
x = 11,648,445.80
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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.