Finding the Fourth Proportional to 221,443,670.70, 332,165,506.05 and 205,319,357.10
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Solution
The fourth proportional to 221,443,670.70, 332,165,506.05 and 205,319,357.10 is: 307,979,035.65
Step by Step Solution
- Step 1: Write the proportion equation
221,443,670.70 : 332,165,506.05 = 205,319,357.10 : x - Step 2: Convert to fraction form
221,443,670.70/332,165,506.05 = 205,319,357.10/x - Step 3: Cross multiply
221,443,670.70x = 332,165,506.05 × 205,319,357.10 - Step 4: Simplify right side
221,443,670.70x = 68,200,008,152,982,160 - Step 5: Solve for x
x = 68,200,008,152,982,160/221,443,670.70 - Step 6: Final answer
x = 307,979,035.65
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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.