Finding the Fourth Proportional to 5,768,971.96, 7,960,490.86 and 3,190,302.52
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Solution
The fourth proportional to 5,768,971.96, 7,960,490.86 and 3,190,302.52 is: 4,402,235.65
Step by Step Solution
- Step 1: Write the proportion equation
5,768,971.96 : 7,960,490.86 = 3,190,302.52 : x - Step 2: Convert to fraction form
5,768,971.96/7,960,490.86 = 3,190,302.52/x - Step 3: Cross multiply
5,768,971.96x = 7,960,490.86 × 3,190,302.52 - Step 4: Simplify right side
5,768,971.96x = 25,396,374,051,094.97 - Step 5: Solve for x
x = 25,396,374,051,094.97/5,768,971.96 - Step 6: Final answer
x = 4,402,235.65
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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.