Finding the Fourth Proportional to 6,391,889, 8,820,754.36 and 3,491,281.68
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Solution
The fourth proportional to 6,391,889, 8,820,754.36 and 3,491,281.68 is: 4,817,940.06
Step by Step Solution
- Step 1: Write the proportion equation
6,391,889 : 8,820,754.36 = 3,491,281.68 : x - Step 2: Convert to fraction form
6,391,889/8,820,754.36 = 3,491,281.68/x - Step 3: Cross multiply
6,391,889x = 8,820,754.36 × 3,491,281.68 - Step 4: Simplify right side
6,391,889x = 30,795,738,100,848.12 - Step 5: Solve for x
x = 30,795,738,100,848.12/6,391,889 - Step 6: Final answer
x = 4,817,940.06
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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.