Finding the Fourth Proportional to 14,648,975.70, 20,213,728.11 and 8,031,822.99
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Solution
The fourth proportional to 14,648,975.70, 20,213,728.11 and 8,031,822.99 is: 11,082,896.82
Step by Step Solution
- Step 1: Write the proportion equation
14,648,975.70 : 20,213,728.11 = 8,031,822.99 : x - Step 2: Convert to fraction form
14,648,975.70/20,213,728.11 = 8,031,822.99/x - Step 3: Cross multiply
14,648,975.70x = 20,213,728.11 × 8,031,822.99 - Step 4: Simplify right side
14,648,975.70x = 162,353,086,147,507.25 - Step 5: Solve for x
x = 162,353,086,147,507.25/14,648,975.70 - Step 6: Final answer
x = 11,082,896.82
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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.