Finding the Fourth Proportional to 6,404,561.62, 8,842,139.14 and 3,960,449.70
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Solution
The fourth proportional to 6,404,561.62, 8,842,139.14 and 3,960,449.70 is: 5,467,797.70
Step by Step Solution
- Step 1: Write the proportion equation
6,404,561.62 : 8,842,139.14 = 3,960,449.70 : x - Step 2: Convert to fraction form
6,404,561.62/8,842,139.14 = 3,960,449.70/x - Step 3: Cross multiply
6,404,561.62x = 8,842,139.14 × 3,960,449.70 - Step 4: Simplify right side
6,404,561.62x = 35,018,847,304,371.26 - Step 5: Solve for x
x = 35,018,847,304,371.26/6,404,561.62 - Step 6: Final answer
x = 5,467,797.70
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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.