Finding the Fourth Proportional to 18,964,161.50, 26,162,203.11 and 11,119,669.70
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Solution
The fourth proportional to 18,964,161.50, 26,162,203.11 and 11,119,669.70 is: 15,340,254.15
Step by Step Solution
- Step 1: Write the proportion equation
18,964,161.50 : 26,162,203.11 = 11,119,669.70 : x - Step 2: Convert to fraction form
18,964,161.50/26,162,203.11 = 11,119,669.70/x - Step 3: Cross multiply
18,964,161.50x = 26,162,203.11 × 11,119,669.70 - Step 4: Simplify right side
18,964,161.50x = 290,915,057,207,512.75 - Step 5: Solve for x
x = 290,915,057,207,512.75/18,964,161.50 - Step 6: Final answer
x = 15,340,254.15
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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.