Finding the Fourth Proportional to 15,515,917.98, 21,411,175.43 and 8,546,445.49
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Solution
The fourth proportional to 15,515,917.98, 21,411,175.43 and 8,546,445.49 is: 11,793,658.87
Step by Step Solution
- Step 1: Write the proportion equation
15,515,917.98 : 21,411,175.43 = 8,546,445.49 : x - Step 2: Convert to fraction form
15,515,917.98/21,411,175.43 = 8,546,445.49/x - Step 3: Cross multiply
15,515,917.98x = 21,411,175.43 × 8,546,445.49 - Step 4: Simplify right side
15,515,917.98x = 182,989,443,646,590.09 - Step 5: Solve for x
x = 182,989,443,646,590.09/15,515,917.98 - Step 6: Final answer
x = 11,793,658.87
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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.