Finding the Fourth Proportional to 210,833,481.72, 290,953,175.58 and 121,476,040.44
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Solution
The fourth proportional to 210,833,481.72, 290,953,175.58 and 121,476,040.44 is: 167,638,647.50
Step by Step Solution
- Step 1: Write the proportion equation
210,833,481.72 : 290,953,175.58 = 121,476,040.44 : x - Step 2: Convert to fraction form
210,833,481.72/290,953,175.58 = 121,476,040.44/x - Step 3: Cross multiply
210,833,481.72x = 290,953,175.58 × 121,476,040.44 - Step 4: Simplify right side
210,833,481.72x = 35,343,839,722,902,496 - Step 5: Solve for x
x = 35,343,839,722,902,496/210,833,481.72 - Step 6: Final answer
x = 167,638,647.50
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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.