Finding the Fourth Proportional to 13,438,353.95, 18,544,394.29 and 7,933,502.08
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Solution
The fourth proportional to 13,438,353.95, 18,544,394.29 and 7,933,502.08 is: 10,947,917.52
Step by Step Solution
- Step 1: Write the proportion equation
13,438,353.95 : 18,544,394.29 = 7,933,502.08 : x - Step 2: Convert to fraction form
13,438,353.95/18,544,394.29 = 7,933,502.08/x - Step 3: Cross multiply
13,438,353.95x = 18,544,394.29 × 7,933,502.08 - Step 4: Simplify right side
13,438,353.95x = 147,121,990,539,665.66 - Step 5: Solve for x
x = 147,121,990,539,665.66/13,438,353.95 - Step 6: Final answer
x = 10,947,917.52
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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.