Finding the Fourth Proportional to 221,919,982.54, 305,998,960.35 and 165,986,148.99
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Solution
The fourth proportional to 221,919,982.54, 305,998,960.35 and 165,986,148.99 is: 228,873,436.46
Step by Step Solution
- Step 1: Write the proportion equation
221,919,982.54 : 305,998,960.35 = 165,986,148.99 : x - Step 2: Convert to fraction form
221,919,982.54/305,998,960.35 = 165,986,148.99/x - Step 3: Cross multiply
221,919,982.54x = 305,998,960.35 × 165,986,148.99 - Step 4: Simplify right side
221,919,982.54x = 50,791,589,023,440,208 - Step 5: Solve for x
x = 50,791,589,023,440,208/221,919,982.54 - Step 6: Final answer
x = 228,873,436.46
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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.