Finding the Fourth Proportional to 18,107,521.74, 27,161,289.99 and 4,460,933.61
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Solution
The fourth proportional to 18,107,521.74, 27,161,289.99 and 4,460,933.61 is: 6,691,402.23
Step by Step Solution
- Step 1: Write the proportion equation
18,107,521.74 : 27,161,289.99 = 4,460,933.61 : x - Step 2: Convert to fraction form
18,107,521.74/27,161,289.99 = 4,460,933.61/x - Step 3: Cross multiply
18,107,521.74x = 27,161,289.99 × 4,460,933.61 - Step 4: Simplify right side
18,107,521.74x = 121,164,711,407,347.56 - Step 5: Solve for x
x = 121,164,711,407,347.56/18,107,521.74 - Step 6: Final answer
x = 6,691,402.23
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.