Finding the Fourth Proportional to 18,537,452.65, 27,807,335.09 and 4,890,612.11
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Solution
The fourth proportional to 18,537,452.65, 27,807,335.09 and 4,890,612.11 is: 7,336,223.18
Step by Step Solution
- Step 1: Write the proportion equation
18,537,452.65 : 27,807,335.09 = 4,890,612.11 : x - Step 2: Convert to fraction form
18,537,452.65/27,807,335.09 = 4,890,612.11/x - Step 3: Cross multiply
18,537,452.65x = 27,807,335.09 × 4,890,612.11 - Step 4: Simplify right side
18,537,452.65x = 135,994,889,869,995.05 - Step 5: Solve for x
x = 135,994,889,869,995.05/18,537,452.65 - Step 6: Final answer
x = 7,336,223.18
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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.