Finding the Fourth Proportional to 20,467,437.68, 30,652,211.46 and 11,805,279.06
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Solution
The fourth proportional to 20,467,437.68, 30,652,211.46 and 11,805,279.06 is: 17,679,687.89
Step by Step Solution
- Step 1: Write the proportion equation
20,467,437.68 : 30,652,211.46 = 11,805,279.06 : x - Step 2: Convert to fraction form
20,467,437.68/30,652,211.46 = 11,805,279.06/x - Step 3: Cross multiply
20,467,437.68x = 30,652,211.46 × 11,805,279.06 - Step 4: Simplify right side
20,467,437.68x = 361,857,910,091,430.06 - Step 5: Solve for x
x = 361,857,910,091,430.06/20,467,437.68 - Step 6: Final answer
x = 17,679,687.89
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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.