Finding the Fourth Proportional to 38,479,104.96, 57,723,971.85 and 12,927,421.68
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Solution
The fourth proportional to 38,479,104.96, 57,723,971.85 and 12,927,421.68 is: 19,392,917.95
Step by Step Solution
- Step 1: Write the proportion equation
38,479,104.96 : 57,723,971.85 = 12,927,421.68 : x - Step 2: Convert to fraction form
38,479,104.96/57,723,971.85 = 12,927,421.68/x - Step 3: Cross multiply
38,479,104.96x = 57,723,971.85 × 12,927,421.68 - Step 4: Simplify right side
38,479,104.96x = 746,222,125,149,399.75 - Step 5: Solve for x
x = 746,222,125,149,399.75/38,479,104.96 - Step 6: Final answer
x = 19,392,917.95
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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.