Finding the Fourth Proportional to 19,893,488.36, 27,451,891.86 and 11,192,027.72
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Solution
The fourth proportional to 19,893,488.36, 27,451,891.86 and 11,192,027.72 is: 15,444,366.98
Step by Step Solution
- Step 1: Write the proportion equation
19,893,488.36 : 27,451,891.86 = 11,192,027.72 : x - Step 2: Convert to fraction form
19,893,488.36/27,451,891.86 = 11,192,027.72/x - Step 3: Cross multiply
19,893,488.36x = 27,451,891.86 × 11,192,027.72 - Step 4: Simplify right side
19,893,488.36x = 307,242,334,663,562.38 - Step 5: Solve for x
x = 307,242,334,663,562.38/19,893,488.36 - Step 6: Final answer
x = 15,444,366.98
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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.