Finding the Fourth Proportional to 21,536,863.20, 29,720,964.29 and 11,747,517.48
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Solution
The fourth proportional to 21,536,863.20, 29,720,964.29 and 11,747,517.48 is: 16,211,624.89
Step by Step Solution
- Step 1: Write the proportion equation
21,536,863.20 : 29,720,964.29 = 11,747,517.48 : x - Step 2: Convert to fraction form
21,536,863.20/29,720,964.29 = 11,747,517.48/x - Step 3: Cross multiply
21,536,863.20x = 29,720,964.29 × 11,747,517.48 - Step 4: Simplify right side
21,536,863.20x = 349,147,547,460,493.19 - Step 5: Solve for x
x = 349,147,547,460,493.19/21,536,863.20 - Step 6: Final answer
x = 16,211,624.89
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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.