Finding the Fourth Proportional to 19,682,704.80, 29,524,057.20 and 14,643,856.80
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Solution
The fourth proportional to 19,682,704.80, 29,524,057.20 and 14,643,856.80 is: 21,965,785.20
Step by Step Solution
- Step 1: Write the proportion equation
19,682,704.80 : 29,524,057.20 = 14,643,856.80 : x - Step 2: Convert to fraction form
19,682,704.80/29,524,057.20 = 14,643,856.80/x - Step 3: Cross multiply
19,682,704.80x = 29,524,057.20 × 14,643,856.80 - Step 4: Simplify right side
19,682,704.80x = 432,346,065,791,809 - Step 5: Solve for x
x = 432,346,065,791,809/19,682,704.80 - Step 6: Final answer
x = 21,965,785.20
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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.