Finding the Fourth Proportional to 326,957,349.29, 451,210,219.74 and 199,818,612.05
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Solution
The fourth proportional to 326,957,349.29, 451,210,219.74 and 199,818,612.05 is: 275,755,232.44
Step by Step Solution
- Step 1: Write the proportion equation
326,957,349.29 : 451,210,219.74 = 199,818,612.05 : x - Step 2: Convert to fraction form
326,957,349.29/451,210,219.74 = 199,818,612.05/x - Step 3: Cross multiply
326,957,349.29x = 451,210,219.74 × 199,818,612.05 - Step 4: Simplify right side
326,957,349.29x = 90,160,199,848,966,256 - Step 5: Solve for x
x = 90,160,199,848,966,256/326,957,349.29 - Step 6: Final answer
x = 275,755,232.44
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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.