Finding the Fourth Proportional to 7,680,567.96, 11,520,810.27 and 3,131,599.05
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Solution
The fourth proportional to 7,680,567.96, 11,520,810.27 and 3,131,599.05 is: 4,697,381.58
Step by Step Solution
- Step 1: Write the proportion equation
7,680,567.96 : 11,520,810.27 = 3,131,599.05 : x - Step 2: Convert to fraction form
7,680,567.96/11,520,810.27 = 3,131,599.05/x - Step 3: Cross multiply
7,680,567.96x = 11,520,810.27 × 3,131,599.05 - Step 4: Simplify right side
7,680,567.96x = 36,078,558,496,762.24 - Step 5: Solve for x
x = 36,078,558,496,762.24/7,680,567.96 - Step 6: Final answer
x = 4,697,381.58
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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.