Finding the Fourth Proportional to 19,788,840.68, 27,310,236.24 and 10,971,058.99
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Solution
The fourth proportional to 19,788,840.68, 27,310,236.24 and 10,971,058.99 is: 15,140,968.47
Step by Step Solution
- Step 1: Write the proportion equation
19,788,840.68 : 27,310,236.24 = 10,971,058.99 : x - Step 2: Convert to fraction form
19,788,840.68/27,310,236.24 = 10,971,058.99/x - Step 3: Cross multiply
19,788,840.68x = 27,310,236.24 × 10,971,058.99 - Step 4: Simplify right side
19,788,840.68x = 299,622,212,628,469.31 - Step 5: Solve for x
x = 299,622,212,628,469.31/19,788,840.68 - Step 6: Final answer
x = 15,140,968.47
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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.