Finding the Fourth Proportional to 18,732,589.12, 28,098,475.44 and 8,635,210.12
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Solution
The fourth proportional to 18,732,589.12, 28,098,475.44 and 8,635,210.12 is: 12,952,626.99
Step by Step Solution
- Step 1: Write the proportion equation
18,732,589.12 : 28,098,475.44 = 8,635,210.12 : x - Step 2: Convert to fraction form
18,732,589.12/28,098,475.44 = 8,635,210.12/x - Step 3: Cross multiply
18,732,589.12x = 28,098,475.44 × 8,635,210.12 - Step 4: Simplify right side
18,732,589.12x = 242,636,239,476,059.44 - Step 5: Solve for x
x = 242,636,239,476,059.44/18,732,589.12 - Step 6: Final answer
x = 12,952,626.99
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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.