Finding the Fourth Proportional to 20,098,890.68, 30,138,149.94 and 8,582,564.20
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Solution
The fourth proportional to 20,098,890.68, 30,138,149.94 and 8,582,564.20 is: 12,869,496.67
Step by Step Solution
- Step 1: Write the proportion equation
20,098,890.68 : 30,138,149.94 = 8,582,564.20 : x - Step 2: Convert to fraction form
20,098,890.68/30,138,149.94 = 8,582,564.20/x - Step 3: Cross multiply
20,098,890.68x = 30,138,149.94 × 8,582,564.20 - Step 4: Simplify right side
20,098,890.68x = 258,662,606,729,276.12 - Step 5: Solve for x
x = 258,662,606,729,276.12/20,098,890.68 - Step 6: Final answer
x = 12,869,496.67
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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.