Finding the Fourth Proportional to 15,234,118.40, 21,023,081.11 and 8,707,887.99
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Solution
The fourth proportional to 15,234,118.40, 21,023,081.11 and 8,707,887.99 is: 12,016,884.11
Step by Step Solution
- Step 1: Write the proportion equation
15,234,118.40 : 21,023,081.11 = 8,707,887.99 : x - Step 2: Convert to fraction form
15,234,118.40/21,023,081.11 = 8,707,887.99/x - Step 3: Cross multiply
15,234,118.40x = 21,023,081.11 × 8,707,887.99 - Step 4: Simplify right side
15,234,118.40x = 183,066,635,414,786.25 - Step 5: Solve for x
x = 183,066,635,414,786.25/15,234,118.40 - Step 6: Final answer
x = 12,016,884.11
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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.