Finding the Fourth Proportional to 9,771,319.40, 14,656,979.10 and 8,203,677.80
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Solution
The fourth proportional to 9,771,319.40, 14,656,979.10 and 8,203,677.80 is: 12,305,516.70
Step by Step Solution
- Step 1: Write the proportion equation
9,771,319.40 : 14,656,979.10 = 8,203,677.80 : x - Step 2: Convert to fraction form
9,771,319.40/14,656,979.10 = 8,203,677.80/x - Step 3: Cross multiply
9,771,319.40x = 14,656,979.10 × 8,203,677.80 - Step 4: Simplify right side
9,771,319.40x = 120,241,134,057,733.97 - Step 5: Solve for x
x = 120,241,134,057,733.97/9,771,319.40 - Step 6: Final answer
x = 12,305,516.70
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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.