Finding the Fourth Proportional to 13,530,463.30, 18,674,751.97 and 8,026,892.99
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Solution
The fourth proportional to 13,530,463.30, 18,674,751.97 and 8,026,892.99 is: 11,078,721.57
Step by Step Solution
- Step 1: Write the proportion equation
13,530,463.30 : 18,674,751.97 = 8,026,892.99 : x - Step 2: Convert to fraction form
13,530,463.30/18,674,751.97 = 8,026,892.99/x - Step 3: Cross multiply
13,530,463.30x = 18,674,751.97 × 8,026,892.99 - Step 4: Simplify right side
13,530,463.30x = 149,900,235,677,981.69 - Step 5: Solve for x
x = 149,900,235,677,981.69/13,530,463.30 - Step 6: Final answer
x = 11,078,721.57
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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.