Finding the Fourth Proportional to 18,732,588.12, 28,098,473.94 and 8,635,209.12
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Solution
The fourth proportional to 18,732,588.12, 28,098,473.94 and 8,635,209.12 is: 12,952,625.49
Step by Step Solution
- Step 1: Write the proportion equation
18,732,588.12 : 28,098,473.94 = 8,635,209.12 : x - Step 2: Convert to fraction form
18,732,588.12/28,098,473.94 = 8,635,209.12/x - Step 3: Cross multiply
18,732,588.12x = 28,098,473.94 × 8,635,209.12 - Step 4: Simplify right side
18,732,588.12x = 242,636,198,424,770.31 - Step 5: Solve for x
x = 242,636,198,424,770.31/18,732,588.12 - Step 6: Final answer
x = 12,952,625.49
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1.5x scale
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.