Finding the Fourth Proportional to 3,931,740.12, 5,425,975.98 and 2,212,971.96
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Solution
The fourth proportional to 3,931,740.12, 5,425,975.98 and 2,212,971.96 is: 3,053,999.59
Step by Step Solution
- Step 1: Write the proportion equation
3,931,740.12 : 5,425,975.98 = 2,212,971.96 : x - Step 2: Convert to fraction form
3,931,740.12/5,425,975.98 = 2,212,971.96/x - Step 3: Cross multiply
3,931,740.12x = 5,425,975.98 × 2,212,971.96 - Step 4: Simplify right side
3,931,740.12x = 12,007,532,699,373.52 - Step 5: Solve for x
x = 12,007,532,699,373.52/3,931,740.12 - Step 6: Final answer
x = 3,053,999.59
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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.