Finding the Fourth Proportional to 6,391,873.98, 8,820,733.68 and 3,491,266.68
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Solution
The fourth proportional to 6,391,873.98, 8,820,733.68 and 3,491,266.68 is: 4,817,919.39
Step by Step Solution
- Step 1: Write the proportion equation
6,391,873.98 : 8,820,733.68 = 3,491,266.68 : x - Step 2: Convert to fraction form
6,391,873.98/8,820,733.68 = 3,491,266.68/x - Step 3: Cross multiply
6,391,873.98x = 8,820,733.68 × 3,491,266.68 - Step 4: Simplify right side
6,391,873.98x = 30,795,533,590,137.78 - Step 5: Solve for x
x = 30,795,533,590,137.78/6,391,873.98 - Step 6: Final answer
x = 4,817,919.39
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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.