Finding the Fourth Proportional to 15,578,572.73, 21,498,495.79 and 8,514,308.09
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Solution
The fourth proportional to 15,578,572.73, 21,498,495.79 and 8,514,308.09 is: 11,749,780.91
Step by Step Solution
- Step 1: Write the proportion equation
15,578,572.73 : 21,498,495.79 = 8,514,308.09 : x - Step 2: Convert to fraction form
15,578,572.73/21,498,495.79 = 8,514,308.09/x - Step 3: Cross multiply
15,578,572.73x = 21,498,495.79 × 8,514,308.09 - Step 4: Simplify right side
15,578,572.73x = 183,044,816,530,778.38 - Step 5: Solve for x
x = 183,044,816,530,778.38/15,578,572.73 - Step 6: Final answer
x = 11,749,780.91
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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.