Finding the Fourth Proportional to 5,417,979.38, 8,116,139.99 and 3,257,821.73
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Solution
The fourth proportional to 5,417,979.38, 8,116,139.99 and 3,257,821.73 is: 4,880,221.09
Step by Step Solution
- Step 1: Write the proportion equation
5,417,979.38 : 8,116,139.99 = 3,257,821.73 : x - Step 2: Convert to fraction form
5,417,979.38/8,116,139.99 = 3,257,821.73/x - Step 3: Cross multiply
5,417,979.38x = 8,116,139.99 × 3,257,821.73 - Step 4: Simplify right side
5,417,979.38x = 26,440,937,221,143.36 - Step 5: Solve for x
x = 26,440,937,221,143.36/5,417,979.38 - Step 6: Final answer
x = 4,880,221.09
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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.