Finding the Fourth Proportional to 19,947,751.20, 29,846,977.20 and 13,229,287.20
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Solution
The fourth proportional to 19,947,751.20, 29,846,977.20 and 13,229,287.20 is: 19,794,423.42
Step by Step Solution
- Step 1: Write the proportion equation
19,947,751.20 : 29,846,977.20 = 13,229,287.20 : x - Step 2: Convert to fraction form
19,947,751.20/29,846,977.20 = 13,229,287.20/x - Step 3: Cross multiply
19,947,751.20x = 29,846,977.20 × 13,229,287.20 - Step 4: Simplify right side
19,947,751.20x = 394,854,233,430,651.81 - Step 5: Solve for x
x = 394,854,233,430,651.81/19,947,751.20 - Step 6: Final answer
x = 19,794,423.42
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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.