Finding the Fourth Proportional to 21,056,023.06, 29,057,512.11 and 12,354,343.70
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Solution
The fourth proportional to 21,056,023.06, 29,057,512.11 and 12,354,343.70 is: 17,049,111.82
Step by Step Solution
- Step 1: Write the proportion equation
21,056,023.06 : 29,057,512.11 = 12,354,343.70 : x - Step 2: Convert to fraction form
21,056,023.06/29,057,512.11 = 12,354,343.70/x - Step 3: Cross multiply
21,056,023.06x = 29,057,512.11 × 12,354,343.70 - Step 4: Simplify right side
21,056,023.06x = 358,986,491,673,852.19 - Step 5: Solve for x
x = 358,986,491,673,852.19/21,056,023.06 - Step 6: Final answer
x = 17,049,111.82
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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.