Finding the Fourth Proportional to 12,474,995.63, 17,215,520.65 and 7,042,487.63
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Solution
The fourth proportional to 12,474,995.63, 17,215,520.65 and 7,042,487.63 is: 9,718,647.99
Step by Step Solution
- Step 1: Write the proportion equation
12,474,995.63 : 17,215,520.65 = 7,042,487.63 : x - Step 2: Convert to fraction form
12,474,995.63/17,215,520.65 = 7,042,487.63/x - Step 3: Cross multiply
12,474,995.63x = 17,215,520.65 × 7,042,487.63 - Step 4: Simplify right side
12,474,995.63x = 121,240,091,186,422.11 - Step 5: Solve for x
x = 121,240,091,186,422.11/12,474,995.63 - Step 6: Final answer
x = 9,718,647.99
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1.5x scale
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.