Finding the Fourth Proportional to 213,748,508.21, 294,820,845.39 and 196,164,208.08
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Solution
The fourth proportional to 213,748,508.21, 294,820,845.39 and 196,164,208.08 is: 270,567,023.59
Step by Step Solution
- Step 1: Write the proportion equation
213,748,508.21 : 294,820,845.39 = 196,164,208.08 : x - Step 2: Convert to fraction form
213,748,508.21/294,820,845.39 = 196,164,208.08/x - Step 3: Cross multiply
213,748,508.21x = 294,820,845.39 × 196,164,208.08 - Step 4: Simplify right side
213,748,508.21x = 57,833,297,661,405,472 - Step 5: Solve for x
x = 57,833,297,661,405,472/213,748,508.21 - Step 6: Final answer
x = 270,567,023.59
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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.