Finding the Fourth Proportional to 38,063,991.74, 52,528,361.78 and 20,660,340.92
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Solution
The fourth proportional to 38,063,991.74, 52,528,361.78 and 20,660,340.92 is: 28,511,299.33
Step by Step Solution
- Step 1: Write the proportion equation
38,063,991.74 : 52,528,361.78 = 20,660,340.92 : x - Step 2: Convert to fraction form
38,063,991.74/52,528,361.78 = 20,660,340.92/x - Step 3: Cross multiply
38,063,991.74x = 52,528,361.78 × 20,660,340.92 - Step 4: Simplify right side
38,063,991.74x = 1,085,253,862,240,596.38 - Step 5: Solve for x
x = 1,085,253,862,240,596.38/38,063,991.74 - Step 6: Final answer
x = 28,511,299.33
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1.5x scale
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.