Finding the Fourth Proportional to 306,460,236.79, 422,924,099.30 and 167,239,972.09
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Solution
The fourth proportional to 306,460,236.79, 422,924,099.30 and 167,239,972.09 is: 230,796,057.93
Step by Step Solution
- Step 1: Write the proportion equation
306,460,236.79 : 422,924,099.30 = 167,239,972.09 : x - Step 2: Convert to fraction form
306,460,236.79/422,924,099.30 = 167,239,972.09/x - Step 3: Cross multiply
306,460,236.79x = 422,924,099.30 × 167,239,972.09 - Step 4: Simplify right side
306,460,236.79x = 70,729,814,561,854,032 - Step 5: Solve for x
x = 70,729,814,561,854,032/306,460,236.79 - Step 6: Final answer
x = 230,796,057.93
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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.