Finding the Fourth Proportional to 18,542,728.28, 27,818,080.86 and 6,247,915.40
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Solution
The fourth proportional to 18,542,728.28, 27,818,080.86 and 6,247,915.40 is: 9,373,216.99
Step by Step Solution
- Step 1: Write the proportion equation
18,542,728.28 : 27,818,080.86 = 6,247,915.40 : x - Step 2: Convert to fraction form
18,542,728.28/27,818,080.86 = 6,247,915.40/x - Step 3: Cross multiply
18,542,728.28x = 27,818,080.86 × 6,247,915.40 - Step 4: Simplify right side
18,542,728.28x = 173,805,015,803,639.25 - Step 5: Solve for x
x = 173,805,015,803,639.25/18,542,728.28 - Step 6: Final answer
x = 9,373,216.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.