Finding the Fourth Proportional to 5,145,321.27, 7,718,821.16 and 2,111,872.99
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Solution
The fourth proportional to 5,145,321.27, 7,718,821.16 and 2,111,872.99 is: 3,168,153.95
Step by Step Solution
- Step 1: Write the proportion equation
5,145,321.27 : 7,718,821.16 = 2,111,872.99 : x - Step 2: Convert to fraction form
5,145,321.27/7,718,821.16 = 2,111,872.99/x - Step 3: Cross multiply
5,145,321.27x = 7,718,821.16 × 2,111,872.99 - Step 4: Simplify right side
5,145,321.27x = 16,301,169,922,444.47 - Step 5: Solve for x
x = 16,301,169,922,444.47/5,145,321.27 - Step 6: Final answer
x = 3,168,153.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.