Finding the Fourth Proportional to 15,037,391.16, 20,751,043.86 and 8,161,726.68
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Solution
The fourth proportional to 15,037,391.16, 20,751,043.86 and 8,161,726.68 is: 11,262,881.07
Step by Step Solution
- Step 1: Write the proportion equation
15,037,391.16 : 20,751,043.86 = 8,161,726.68 : x - Step 2: Convert to fraction form
15,037,391.16/20,751,043.86 = 8,161,726.68/x - Step 3: Cross multiply
15,037,391.16x = 20,751,043.86 × 8,161,726.68 - Step 4: Simplify right side
15,037,391.16x = 169,364,348,310,012.19 - Step 5: Solve for x
x = 169,364,348,310,012.19/15,037,391.16 - Step 6: Final answer
x = 11,262,881.07
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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.