Finding the Fourth Proportional to 20,139,814.68, 30,230,852.24 and 17,848,964.99
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Solution
The fourth proportional to 20,139,814.68, 30,230,852.24 and 17,848,964.99 is: 26,792,174.19
Step by Step Solution
- Step 1: Write the proportion equation
20,139,814.68 : 30,230,852.24 = 17,848,964.99 : x - Step 2: Convert to fraction form
20,139,814.68/30,230,852.24 = 17,848,964.99/x - Step 3: Cross multiply
20,139,814.68x = 30,230,852.24 × 17,848,964.99 - Step 4: Simplify right side
20,139,814.68x = 539,589,423,098,468.75 - Step 5: Solve for x
x = 539,589,423,098,468.75/20,139,814.68 - Step 6: Final answer
x = 26,792,174.19
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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.