Finding the Fourth Proportional to 13,515,861.65, 20,272,101.69 and 4,417,198.07
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Solution
The fourth proportional to 13,515,861.65, 20,272,101.69 and 4,417,198.07 is: 6,625,244.53
Step by Step Solution
- Step 1: Write the proportion equation
13,515,861.65 : 20,272,101.69 = 4,417,198.07 : x - Step 2: Convert to fraction form
13,515,861.65/20,272,101.69 = 4,417,198.07/x - Step 3: Cross multiply
13,515,861.65x = 20,272,101.69 × 4,417,198.07 - Step 4: Simplify right side
13,515,861.65x = 89,545,888,459,911.75 - Step 5: Solve for x
x = 89,545,888,459,911.75/13,515,861.65 - Step 6: Final answer
x = 6,625,244.53
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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.