Finding the Fourth Proportional to 20,135,775.10, 27,786,473.34 and 11,763,920.88
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Solution
The fourth proportional to 20,135,775.10, 27,786,473.34 and 11,763,920.88 is: 16,233,687.17
Step by Step Solution
- Step 1: Write the proportion equation
20,135,775.10 : 27,786,473.34 = 11,763,920.88 : x - Step 2: Convert to fraction form
20,135,775.10/27,786,473.34 = 11,763,920.88/x - Step 3: Cross multiply
20,135,775.10x = 27,786,473.34 × 11,763,920.88 - Step 4: Simplify right side
20,135,775.10x = 326,877,873,905,989.38 - Step 5: Solve for x
x = 326,877,873,905,989.38/20,135,775.10 - Step 6: Final answer
x = 16,233,687.17
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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.