Finding the Fourth Proportional to 21,289,186.11, 29,379,088.19 and 11,499,630.09
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Solution
The fourth proportional to 21,289,186.11, 29,379,088.19 and 11,499,630.09 is: 15,869,495.66
Step by Step Solution
- Step 1: Write the proportion equation
21,289,186.11 : 29,379,088.19 = 11,499,630.09 : x - Step 2: Convert to fraction form
21,289,186.11/29,379,088.19 = 11,499,630.09/x - Step 3: Cross multiply
21,289,186.11x = 29,379,088.19 × 11,499,630.09 - Step 4: Simplify right side
21,289,186.11x = 337,848,646,650,322.50 - Step 5: Solve for x
x = 337,848,646,650,322.50/21,289,186.11 - Step 6: Final answer
x = 15,869,495.66
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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.