Finding the Fourth Proportional to 18,109,063.84, 24,990,980.88 and 9,960,515.68
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Solution
The fourth proportional to 18,109,063.84, 24,990,980.88 and 9,960,515.68 is: 13,745,771.68
Step by Step Solution
- Step 1: Write the proportion equation
18,109,063.84 : 24,990,980.88 = 9,960,515.68 : x - Step 2: Convert to fraction form
18,109,063.84/24,990,980.88 = 9,960,515.68/x - Step 3: Cross multiply
18,109,063.84x = 24,990,980.88 × 9,960,515.68 - Step 4: Simplify right side
18,109,063.84x = 248,923,056,913,820.19 - Step 5: Solve for x
x = 248,923,056,913,820.19/18,109,063.84 - Step 6: Final answer
x = 13,745,771.68
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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.