Finding the Fourth Proportional to 15,515,918.16, 21,411,175.68 and 8,546,445.68
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Solution
The fourth proportional to 15,515,918.16, 21,411,175.68 and 8,546,445.68 is: 11,793,659.14
Step by Step Solution
- Step 1: Write the proportion equation
15,515,918.16 : 21,411,175.68 = 8,546,445.68 : x - Step 2: Convert to fraction form
15,515,918.16/21,411,175.68 = 8,546,445.68/x - Step 3: Cross multiply
15,515,918.16x = 21,411,175.68 × 8,546,445.68 - Step 4: Simplify right side
15,515,918.16x = 182,989,449,947,584.97 - Step 5: Solve for x
x = 182,989,449,947,584.97/15,515,918.16 - Step 6: Final answer
x = 11,793,659.14
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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.