Finding the Fourth Proportional to 11,295,128.16, 15,587,397.07 and 6,138,489.56
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Solution
The fourth proportional to 11,295,128.16, 15,587,397.07 and 6,138,489.56 is: 8,471,180.92
Step by Step Solution
- Step 1: Write the proportion equation
11,295,128.16 : 15,587,397.07 = 6,138,489.56 : x - Step 2: Convert to fraction form
11,295,128.16/15,587,397.07 = 6,138,489.56/x - Step 3: Cross multiply
11,295,128.16x = 15,587,397.07 × 6,138,489.56 - Step 4: Simplify right side
11,295,128.16x = 95,683,074,181,769.58 - Step 5: Solve for x
x = 95,683,074,181,769.58/11,295,128.16 - Step 6: Final answer
x = 8,471,180.92
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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.