Finding the Fourth Proportional to 15,403,057.44, 21,256,224.42 and 8,434,175.80
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Solution
The fourth proportional to 15,403,057.44, 21,256,224.42 and 8,434,175.80 is: 11,639,165.43
Step by Step Solution
- Step 1: Write the proportion equation
15,403,057.44 : 21,256,224.42 = 8,434,175.80 : x - Step 2: Convert to fraction form
15,403,057.44/21,256,224.42 = 8,434,175.80/x - Step 3: Cross multiply
15,403,057.44x = 21,256,224.42 × 8,434,175.80 - Step 4: Simplify right side
15,403,057.44x = 179,278,733,602,533.06 - Step 5: Solve for x
x = 179,278,733,602,533.06/15,403,057.44 - Step 6: Final answer
x = 11,639,165.43
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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.