Finding the Fourth Proportional to 12,138,988.16, 16,751,608.14 and 6,632,244.74
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Solution
The fourth proportional to 12,138,988.16, 16,751,608.14 and 6,632,244.74 is: 9,152,390.92
Step by Step Solution
- Step 1: Write the proportion equation
12,138,988.16 : 16,751,608.14 = 6,632,244.74 : x - Step 2: Convert to fraction form
12,138,988.16/16,751,608.14 = 6,632,244.74/x - Step 3: Cross multiply
12,138,988.16x = 16,751,608.14 × 6,632,244.74 - Step 4: Simplify right side
12,138,988.16x = 111,100,764,973,056.19 - Step 5: Solve for x
x = 111,100,764,973,056.19/12,138,988.16 - Step 6: Final answer
x = 9,152,390.92
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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.