Finding the Fourth Proportional to 14,501,421.75, 20,011,562.36 and 7,975,051.05
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Solution
The fourth proportional to 14,501,421.75, 20,011,562.36 and 7,975,051.05 is: 11,005,350.66
Step by Step Solution
- Step 1: Write the proportion equation
14,501,421.75 : 20,011,562.36 = 7,975,051.05 : x - Step 2: Convert to fraction form
14,501,421.75/20,011,562.36 = 7,975,051.05/x - Step 3: Cross multiply
14,501,421.75x = 20,011,562.36 × 7,975,051.05 - Step 4: Simplify right side
14,501,421.75x = 159,593,231,371,383.22 - Step 5: Solve for x
x = 159,593,231,371,383.22/14,501,421.75 - Step 6: Final answer
x = 11,005,350.66
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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.