Finding the Fourth Proportional to 221,443,365.18, 305,585,923.35 and 122,321,979.23
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Solution
The fourth proportional to 221,443,365.18, 305,585,923.35 and 122,321,979.23 is: 168,801,060.88
Step by Step Solution
- Step 1: Write the proportion equation
221,443,365.18 : 305,585,923.35 = 122,321,979.23 : x - Step 2: Convert to fraction form
221,443,365.18/305,585,923.35 = 122,321,979.23/x - Step 3: Cross multiply
221,443,365.18x = 305,585,923.35 × 122,321,979.23 - Step 4: Simplify right side
221,443,365.18x = 37,379,874,966,859,536 - Step 5: Solve for x
x = 37,379,874,966,859,536/221,443,365.18 - Step 6: Final answer
x = 168,801,060.88
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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.