Finding the Fourth Proportional to 21,491,257.20, 32,236,885.80 and 19,507,210.80
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Solution
The fourth proportional to 21,491,257.20, 32,236,885.80 and 19,507,210.80 is: 29,260,816.20
Step by Step Solution
- Step 1: Write the proportion equation
21,491,257.20 : 32,236,885.80 = 19,507,210.80 : x - Step 2: Convert to fraction form
21,491,257.20/32,236,885.80 = 19,507,210.80/x - Step 3: Cross multiply
21,491,257.20x = 32,236,885.80 × 19,507,210.80 - Step 4: Simplify right side
21,491,257.20x = 628,851,726,836,126.62 - Step 5: Solve for x
x = 628,851,726,836,126.62/21,491,257.20 - Step 6: Final answer
x = 29,260,816.20
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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.