Finding the Fourth Proportional to 20,924,464.50, 28,887,599.97 and 13,588,858.26
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Solution
The fourth proportional to 20,924,464.50, 28,887,599.97 and 13,588,858.26 is: 18,760,312.91
Step by Step Solution
- Step 1: Write the proportion equation
20,924,464.50 : 28,887,599.97 = 13,588,858.26 : x - Step 2: Convert to fraction form
20,924,464.50/28,887,599.97 = 13,588,858.26/x - Step 3: Cross multiply
20,924,464.50x = 28,887,599.97 × 13,588,858.26 - Step 4: Simplify right side
20,924,464.50x = 392,549,501,463,910.25 - Step 5: Solve for x
x = 392,549,501,463,910.25/20,924,464.50 - Step 6: Final answer
x = 18,760,312.91
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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.