Finding the Fourth Proportional to 31,370,346.05, 43,290,213.68 and 17,431,340.55
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Solution
The fourth proportional to 31,370,346.05, 43,290,213.68 and 17,431,340.55 is: 24,054,769.94
Step by Step Solution
- Step 1: Write the proportion equation
31,370,346.05 : 43,290,213.68 = 17,431,340.55 : x - Step 2: Convert to fraction form
31,370,346.05/43,290,213.68 = 17,431,340.55/x - Step 3: Cross multiply
31,370,346.05x = 43,290,213.68 × 17,431,340.55 - Step 4: Simplify right side
31,370,346.05x = 754,606,457,051,192 - Step 5: Solve for x
x = 754,606,457,051,192/31,370,346.05 - Step 6: Final answer
x = 24,054,769.94
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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.