Finding the Fourth Proportional to 21,910,757.14, 30,227,340.32 and 13,203,982.08
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Solution
The fourth proportional to 21,910,757.14, 30,227,340.32 and 13,203,982.08 is: 18,215,767.60
Step by Step Solution
- Step 1: Write the proportion equation
21,910,757.14 : 30,227,340.32 = 13,203,982.08 : x - Step 2: Convert to fraction form
21,910,757.14/30,227,340.32 = 13,203,982.08/x - Step 3: Cross multiply
21,910,757.14x = 30,227,340.32 × 13,203,982.08 - Step 4: Simplify right side
21,910,757.14x = 399,121,259,911,341.50 - Step 5: Solve for x
x = 399,121,259,911,341.50/21,910,757.14 - Step 6: Final answer
x = 18,215,767.60
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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.