Finding the Fourth Proportional to 27,515,455.18, 37,971,450.84 and 15,126,346.68
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Solution
The fourth proportional to 27,515,455.18, 37,971,450.84 and 15,126,346.68 is: 20,874,425.87
Step by Step Solution
- Step 1: Write the proportion equation
27,515,455.18 : 37,971,450.84 = 15,126,346.68 : x - Step 2: Convert to fraction form
27,515,455.18/37,971,450.84 = 15,126,346.68/x - Step 3: Cross multiply
27,515,455.18x = 37,971,450.84 × 15,126,346.68 - Step 4: Simplify right side
27,515,455.18x = 574,369,329,348,417.25 - Step 5: Solve for x
x = 574,369,329,348,417.25/27,515,455.18 - Step 6: Final answer
x = 20,874,425.87
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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.