Finding the Fourth Proportional to 7,167,938.99, 9,891,751.52 and 3,948,674.99
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Solution
The fourth proportional to 7,167,938.99, 9,891,751.52 and 3,948,674.99 is: 5,449,169.12
Step by Step Solution
- Step 1: Write the proportion equation
7,167,938.99 : 9,891,751.52 = 3,948,674.99 : x - Step 2: Convert to fraction form
7,167,938.99/9,891,751.52 = 3,948,674.99/x - Step 3: Cross multiply
7,167,938.99x = 9,891,751.52 × 3,948,674.99 - Step 4: Simplify right side
7,167,938.99x = 39,059,311,794,731.41 - Step 5: Solve for x
x = 39,059,311,794,731.41/7,167,938.99 - Step 6: Final answer
x = 5,449,169.12
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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.