Finding the Fourth Proportional to 21,410,340.71, 29,546,290.01 and 11,620,782.05
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Solution
The fourth proportional to 21,410,340.71, 29,546,290.01 and 11,620,782.05 is: 16,036,689.99
Step by Step Solution
- Step 1: Write the proportion equation
21,410,340.71 : 29,546,290.01 = 11,620,782.05 : x - Step 2: Convert to fraction form
21,410,340.71/29,546,290.01 = 11,620,782.05/x - Step 3: Cross multiply
21,410,340.71x = 29,546,290.01 × 11,620,782.05 - Step 4: Simplify right side
21,410,340.71x = 343,350,996,473,622.81 - Step 5: Solve for x
x = 343,350,996,473,622.81/21,410,340.71 - Step 6: Final answer
x = 16,036,689.99
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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.