Finding the Fourth Proportional to 21,551,201,731.26, 29,524,653,162 and 20,745,449,487.54
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Solution
The fourth proportional to 21,551,201,731.26, 29,524,653,162 and 20,745,449,487.54 is: 28,420,791,028.14
Step by Step Solution
- Step 1: Write the proportion equation
21,551,201,731.26 : 29,524,653,162 = 20,745,449,487.54 : x - Step 2: Convert to fraction form
21,551,201,731.26/29,524,653,162 = 20,745,449,487.54/x - Step 3: Cross multiply
21,551,201,731.26x = 29,524,653,162 × 20,745,449,487.54 - Step 4: Simplify right side
21,551,201,731.26x = 612,502,200,809,409,216,512 - Step 5: Solve for x
x = 612,502,200,809,409,216,512/21,551,201,731.26 - Step 6: Final answer
x = 28,420,791,028.14
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.