Finding the Fourth Proportional to 261,673,220.58, 361,111,432.60 and 144,202,765.65
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Solution
The fourth proportional to 261,673,220.58, 361,111,432.60 and 144,202,765.65 is: 199,001,132.69
Step by Step Solution
- Step 1: Write the proportion equation
261,673,220.58 : 361,111,432.60 = 144,202,765.65 : x - Step 2: Convert to fraction form
261,673,220.58/361,111,432.60 = 144,202,765.65/x - Step 3: Cross multiply
261,673,220.58x = 361,111,432.60 × 144,202,765.65 - Step 4: Simplify right side
261,673,220.58x = 52,073,267,288,753,576 - Step 5: Solve for x
x = 52,073,267,288,753,576/261,673,220.58 - Step 6: Final answer
x = 199,001,132.69
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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.