Finding the Fourth Proportional to 221,663,997.80, 332,495,996.70 and 92,228,589.80
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Solution
The fourth proportional to 221,663,997.80, 332,495,996.70 and 92,228,589.80 is: 138,342,884.70
Step by Step Solution
- Step 1: Write the proportion equation
221,663,997.80 : 332,495,996.70 = 92,228,589.80 : x - Step 2: Convert to fraction form
221,663,997.80/332,495,996.70 = 92,228,589.80/x - Step 3: Cross multiply
221,663,997.80x = 332,495,996.70 × 92,228,589.80 - Step 4: Simplify right side
221,663,997.80x = 30,665,636,889,786,452 - Step 5: Solve for x
x = 30,665,636,889,786,452/221,663,997.80 - Step 6: Final answer
x = 138,342,884.70
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1.5x scale
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.