Finding the Fourth Proportional to 12,120,781.42, 16,727,033.28 and 6,614,511.09
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Solution
The fourth proportional to 12,120,781.42, 16,727,033.28 and 6,614,511.09 is: 9,128,218.98
Step by Step Solution
- Step 1: Write the proportion equation
12,120,781.42 : 16,727,033.28 = 6,614,511.09 : x - Step 2: Convert to fraction form
12,120,781.42/16,727,033.28 = 6,614,511.09/x - Step 3: Cross multiply
12,120,781.42x = 16,727,033.28 × 6,614,511.09 - Step 4: Simplify right side
12,120,781.42x = 110,641,147,016,651.36 - Step 5: Solve for x
x = 110,641,147,016,651.36/12,120,781.42 - Step 6: Final answer
x = 9,128,218.98
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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.