Finding the Fourth Proportional to 20,364,936.81, 30,566,602.11 and 7,423,596.09
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Solution
The fourth proportional to 20,364,936.81, 30,566,602.11 and 7,423,596.09 is: 11,142,391.95
Step by Step Solution
- Step 1: Write the proportion equation
20,364,936.81 : 30,566,602.11 = 7,423,596.09 : x - Step 2: Convert to fraction form
20,364,936.81/30,566,602.11 = 7,423,596.09/x - Step 3: Cross multiply
20,364,936.81x = 30,566,602.11 × 7,423,596.09 - Step 4: Simplify right side
20,364,936.81x = 226,914,107,908,381.75 - Step 5: Solve for x
x = 226,914,107,908,381.75/20,364,936.81 - Step 6: Final answer
x = 11,142,391.95
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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.