Finding the Fourth Proportional to 21,344,214.70, 29,455,010.02 and 11,554,651.62
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Solution
The fourth proportional to 21,344,214.70, 29,455,010.02 and 11,554,651.62 is: 15,945,415.84
Step by Step Solution
- Step 1: Write the proportion equation
21,344,214.70 : 29,455,010.02 = 11,554,651.62 : x - Step 2: Convert to fraction form
21,344,214.70/29,455,010.02 = 11,554,651.62/x - Step 3: Cross multiply
21,344,214.70x = 29,455,010.02 × 11,554,651.62 - Step 4: Simplify right side
21,344,214.70x = 340,342,379,244,709.19 - Step 5: Solve for x
x = 340,342,379,244,709.19/21,344,214.70 - Step 6: Final answer
x = 15,945,415.84
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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.