Finding the Fourth Proportional to 217,963,464.20, 326,575,220.70 and 131,520,231.80
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Solution
The fourth proportional to 217,963,464.20, 326,575,220.70 and 131,520,231.80 is: 197,057,102.59
Step by Step Solution
- Step 1: Write the proportion equation
217,963,464.20 : 326,575,220.70 = 131,520,231.80 : x - Step 2: Convert to fraction form
217,963,464.20/326,575,220.70 = 131,520,231.80/x - Step 3: Cross multiply
217,963,464.20x = 326,575,220.70 × 131,520,231.80 - Step 4: Simplify right side
217,963,464.20x = 42,951,248,726,600,152 - Step 5: Solve for x
x = 42,951,248,726,600,152/217,963,464.20 - Step 6: Final answer
x = 197,057,102.59
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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.