Finding the Fourth Proportional to 38,623,232.81, 53,300,107.52 and 20,982,147.02
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Solution
The fourth proportional to 38,623,232.81, 53,300,107.52 and 20,982,147.02 is: 28,955,388.00
Step by Step Solution
- Step 1: Write the proportion equation
38,623,232.81 : 53,300,107.52 = 20,982,147.02 : x - Step 2: Convert to fraction form
38,623,232.81/53,300,107.52 = 20,982,147.02/x - Step 3: Cross multiply
38,623,232.81x = 53,300,107.52 × 20,982,147.02 - Step 4: Simplify right side
38,623,232.81x = 1,118,350,692,073,594.75 - Step 5: Solve for x
x = 1,118,350,692,073,594.75/38,623,232.81 - Step 6: Final answer
x = 28,955,388.00
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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.