Finding the Fourth Proportional to 21,491,324.70, 32,236,987.05 and 19,507,278.30
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Solution
The fourth proportional to 21,491,324.70, 32,236,987.05 and 19,507,278.30 is: 29,260,917.45
Step by Step Solution
- Step 1: Write the proportion equation
21,491,324.70 : 32,236,987.05 = 19,507,278.30 : x - Step 2: Convert to fraction form
21,491,324.70/32,236,987.05 = 19,507,278.30/x - Step 3: Cross multiply
21,491,324.70x = 32,236,987.05 × 19,507,278.30 - Step 4: Simplify right side
21,491,324.70x = 628,855,877,937,846 - Step 5: Solve for x
x = 628,855,877,937,846/21,491,324.70 - Step 6: Final answer
x = 29,260,917.45
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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.