Finding the Fourth Proportional to 13,239,816.42, 19,859,695.41 and 3,524,431.62
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Solution
The fourth proportional to 13,239,816.42, 19,859,695.41 and 3,524,431.62 is: 5,286,639.65
Step by Step Solution
- Step 1: Write the proportion equation
13,239,816.42 : 19,859,695.41 = 3,524,431.62 : x - Step 2: Convert to fraction form
13,239,816.42/19,859,695.41 = 3,524,431.62/x - Step 3: Cross multiply
13,239,816.42x = 19,859,695.41 × 3,524,431.62 - Step 4: Simplify right side
13,239,816.42x = 69,994,138,466,572.87 - Step 5: Solve for x
x = 69,994,138,466,572.87/13,239,816.42 - Step 6: Final answer
x = 5,286,639.65
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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.