Finding the Fourth Proportional to 21,615,775.68, 29,825,826.84 and 12,322,950.24
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Solution
The fourth proportional to 21,615,775.68, 29,825,826.84 and 12,322,950.24 is: 17,003,423.12
Step by Step Solution
- Step 1: Write the proportion equation
21,615,775.68 : 29,825,826.84 = 12,322,950.24 : x - Step 2: Convert to fraction form
21,615,775.68/29,825,826.84 = 12,322,950.24/x - Step 3: Cross multiply
21,615,775.68x = 29,825,826.84 × 12,322,950.24 - Step 4: Simplify right side
21,615,775.68x = 367,542,180,016,176.44 - Step 5: Solve for x
x = 367,542,180,016,176.44/21,615,775.68 - Step 6: Final answer
x = 17,003,423.12
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1.5x scale
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.