Finding the Fourth Proportional to 18,850,783.86, 28,275,610.68 and 5,204,764.08
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Solution
The fourth proportional to 18,850,783.86, 28,275,610.68 and 5,204,764.08 is: 7,806,990.09
Step by Step Solution
- Step 1: Write the proportion equation
18,850,783.86 : 28,275,610.68 = 5,204,764.08 : x - Step 2: Convert to fraction form
18,850,783.86/28,275,610.68 = 5,204,764.08/x - Step 3: Cross multiply
18,850,783.86x = 28,275,610.68 × 5,204,764.08 - Step 4: Simplify right side
18,850,783.86x = 147,167,882,807,328.38 - Step 5: Solve for x
x = 147,167,882,807,328.38/18,850,783.86 - Step 6: Final answer
x = 7,806,990.09
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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.