Finding the Fourth Proportional to 21,616,534.29, 32,425,420.74 and 8,485,405.66
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Solution
The fourth proportional to 21,616,534.29, 32,425,420.74 and 8,485,405.66 is: 12,728,351.59
Step by Step Solution
- Step 1: Write the proportion equation
21,616,534.29 : 32,425,420.74 = 8,485,405.66 : x - Step 2: Convert to fraction form
21,616,534.29/32,425,420.74 = 8,485,405.66/x - Step 3: Cross multiply
21,616,534.29x = 32,425,420.74 × 8,485,405.66 - Step 4: Simplify right side
21,616,534.29x = 275,142,848,755,388.78 - Step 5: Solve for x
x = 275,142,848,755,388.78/21,616,534.29 - Step 6: Final answer
x = 12,728,351.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.