Finding the Fourth Proportional to 20,285,229.04, 27,989,490.50 and 12,021,655.01
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Solution
The fourth proportional to 20,285,229.04, 27,989,490.50 and 12,021,655.01 is: 16,587,438.96
Step by Step Solution
- Step 1: Write the proportion equation
20,285,229.04 : 27,989,490.50 = 12,021,655.01 : x - Step 2: Convert to fraction form
20,285,229.04/27,989,490.50 = 12,021,655.01/x - Step 3: Cross multiply
20,285,229.04x = 27,989,490.50 × 12,021,655.01 - Step 4: Simplify right side
20,285,229.04x = 336,479,998,541,697.94 - Step 5: Solve for x
x = 336,479,998,541,697.94/20,285,229.04 - Step 6: Final answer
x = 16,587,438.96
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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.