Finding the Fourth Proportional to 19,703,575.92, 27,195,468.12 and 11,557,438.32
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Solution
The fourth proportional to 19,703,575.92, 27,195,468.12 and 11,557,438.32 is: 15,951,923.99
Step by Step Solution
- Step 1: Write the proportion equation
19,703,575.92 : 27,195,468.12 = 11,557,438.32 : x - Step 2: Convert to fraction form
19,703,575.92/27,195,468.12 = 11,557,438.32/x - Step 3: Cross multiply
19,703,575.92x = 27,195,468.12 × 11,557,438.32 - Step 4: Simplify right side
19,703,575.92x = 314,309,945,380,426.38 - Step 5: Solve for x
x = 314,309,945,380,426.38/19,703,575.92 - Step 6: Final answer
x = 15,951,923.99
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1.5x scale
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.