Finding the Fourth Proportional to 13,861,389.48, 19,129,434.98 and 7,981,897
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Solution
The fourth proportional to 13,861,389.48, 19,129,434.98 and 7,981,897 is: 11,015,431.02
Step by Step Solution
- Step 1: Write the proportion equation
13,861,389.48 : 19,129,434.98 = 7,981,897 : x - Step 2: Convert to fraction form
13,861,389.48/19,129,434.98 = 7,981,897/x - Step 3: Cross multiply
13,861,389.48x = 19,129,434.98 × 7,981,897 - Step 4: Simplify right side
13,861,389.48x = 152,689,179,678,557.06 - Step 5: Solve for x
x = 152,689,179,678,557.06/13,861,389.48 - Step 6: Final answer
x = 11,015,431.02
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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.