Finding the Fourth Proportional to 18,614,657.28, 27,921,778.56 and 7,263,079.68
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Solution
The fourth proportional to 18,614,657.28, 27,921,778.56 and 7,263,079.68 is: 10,894,538.61
Step by Step Solution
- Step 1: Write the proportion equation
18,614,657.28 : 27,921,778.56 = 7,263,079.68 : x - Step 2: Convert to fraction form
18,614,657.28/27,921,778.56 = 7,263,079.68/x - Step 3: Cross multiply
18,614,657.28x = 27,921,778.56 × 7,263,079.68 - Step 4: Simplify right side
18,614,657.28x = 202,798,102,488,595.66 - Step 5: Solve for x
x = 202,798,102,488,595.66/18,614,657.28 - Step 6: Final answer
x = 10,894,538.61
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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.