Finding the Fourth Proportional to 20,940,614.48, 28,888,348.20 and 12,239,153.84
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Solution
The fourth proportional to 20,940,614.48, 28,888,348.20 and 12,239,153.84 is: 16,884,363.07
Step by Step Solution
- Step 1: Write the proportion equation
20,940,614.48 : 28,888,348.20 = 12,239,153.84 : x - Step 2: Convert to fraction form
20,940,614.48/28,888,348.20 = 12,239,153.84/x - Step 3: Cross multiply
20,940,614.48x = 28,888,348.20 × 12,239,153.84 - Step 4: Simplify right side
20,940,614.48x = 353,568,937,803,287.06 - Step 5: Solve for x
x = 353,568,937,803,287.06/20,940,614.48 - Step 6: Final answer
x = 16,884,363.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.