Finding the Fourth Proportional to 15,556,141.18, 21,467,471.48 and 8,586,816.92
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Solution
The fourth proportional to 15,556,141.18, 21,467,471.48 and 8,586,816.92 is: 11,849,805.50
Step by Step Solution
- Step 1: Write the proportion equation
15,556,141.18 : 21,467,471.48 = 8,586,816.92 : x - Step 2: Convert to fraction form
15,556,141.18/21,467,471.48 = 8,586,816.92/x - Step 3: Cross multiply
15,556,141.18x = 21,467,471.48 × 8,586,816.92 - Step 4: Simplify right side
15,556,141.18x = 184,337,247,183,810 - Step 5: Solve for x
x = 184,337,247,183,810/15,556,141.18 - Step 6: Final answer
x = 11,849,805.50
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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.