Finding the Fourth Proportional to 12,120,830.94, 16,727,101.68 and 6,614,560.67
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Solution
The fourth proportional to 12,120,830.94, 16,727,101.68 and 6,614,560.67 is: 9,128,287.44
Step by Step Solution
- Step 1: Write the proportion equation
12,120,830.94 : 16,727,101.68 = 6,614,560.67 : x - Step 2: Convert to fraction form
12,120,830.94/16,727,101.68 = 6,614,560.67/x - Step 3: Cross multiply
12,120,830.94x = 16,727,101.68 × 6,614,560.67 - Step 4: Simplify right side
12,120,830.94x = 110,642,428,846,626.09 - Step 5: Solve for x
x = 110,642,428,846,626.09/12,120,830.94 - Step 6: Final answer
x = 9,128,287.44
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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.