Finding the Fourth Proportional to 388,752,642, 536,489,843.40 and 214,923,583.44
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Solution
The fourth proportional to 388,752,642, 536,489,843.40 and 214,923,583.44 is: 296,600,735.70
Step by Step Solution
- Step 1: Write the proportion equation
388,752,642 : 536,489,843.40 = 214,923,583.44 : x - Step 2: Convert to fraction form
388,752,642/536,489,843.40 = 214,923,583.44/x - Step 3: Cross multiply
388,752,642x = 536,489,843.40 × 214,923,583.44 - Step 4: Simplify right side
388,752,642x = 115,304,319,622,692,432 - Step 5: Solve for x
x = 115,304,319,622,692,432/388,752,642 - Step 6: Final answer
x = 296,600,735.70
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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.