Finding the Fourth Proportional to 39,606,471.39, 54,660,202.56 and 21,971,059.81
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Solution
The fourth proportional to 39,606,471.39, 54,660,202.56 and 21,971,059.81 is: 30,321,877.65
Step by Step Solution
- Step 1: Write the proportion equation
39,606,471.39 : 54,660,202.56 = 21,971,059.81 : x - Step 2: Convert to fraction form
39,606,471.39/54,660,202.56 = 21,971,059.81/x - Step 3: Cross multiply
39,606,471.39x = 54,660,202.56 × 21,971,059.81 - Step 4: Simplify right side
39,606,471.39x = 1,200,942,579,593,519.50 - Step 5: Solve for x
x = 1,200,942,579,593,519.50/39,606,471.39 - Step 6: Final answer
x = 30,321,877.65
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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.