Finding the Fourth Proportional to 27,518,626.26, 37,976,129.10 and 15,129,256.68
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Solution
The fourth proportional to 27,518,626.26, 37,976,129.10 and 15,129,256.68 is: 20,878,607.80
Step by Step Solution
- Step 1: Write the proportion equation
27,518,626.26 : 37,976,129.10 = 15,129,256.68 : x - Step 2: Convert to fraction form
27,518,626.26/37,976,129.10 = 15,129,256.68/x - Step 3: Cross multiply
27,518,626.26x = 37,976,129.10 × 15,129,256.68 - Step 4: Simplify right side
27,518,626.26x = 574,550,604,866,717.38 - Step 5: Solve for x
x = 574,550,604,866,717.38/27,518,626.26 - Step 6: Final answer
x = 20,878,607.80
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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.