Finding the Fourth Proportional to 6,172,720.99, 8,518,262.81 and 3,419,399.97
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Solution
The fourth proportional to 6,172,720.99, 8,518,262.81 and 3,419,399.97 is: 4,718,720.91
Step by Step Solution
- Step 1: Write the proportion equation
6,172,720.99 : 8,518,262.81 = 3,419,399.97 : x - Step 2: Convert to fraction form
6,172,720.99/8,518,262.81 = 3,419,399.97/x - Step 3: Cross multiply
6,172,720.99x = 8,518,262.81 × 3,419,399.97 - Step 4: Simplify right side
6,172,720.99x = 29,127,347,579,869.12 - Step 5: Solve for x
x = 29,127,347,579,869.12/6,172,720.99 - Step 6: Final answer
x = 4,718,720.91
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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.