Finding the Fourth Proportional to 38,582,361.99, 53,242,991.40 and 20,940,886.02
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Solution
The fourth proportional to 38,582,361.99, 53,242,991.40 and 20,940,886.02 is: 28,898,060.07
Step by Step Solution
- Step 1: Write the proportion equation
38,582,361.99 : 53,242,991.40 = 20,940,886.02 : x - Step 2: Convert to fraction form
38,582,361.99/53,242,991.40 = 20,940,886.02/x - Step 3: Cross multiply
38,582,361.99x = 53,242,991.40 × 20,940,886.02 - Step 4: Simplify right side
38,582,361.99x = 1,114,955,414,271,240.12 - Step 5: Solve for x
x = 1,114,955,414,271,240.12/38,582,361.99 - Step 6: Final answer
x = 28,898,060.07
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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.