Finding the Fourth Proportional to 19,430,198.40, 29,121,969.60 and 8,064,796.80
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Solution
The fourth proportional to 19,430,198.40, 29,121,969.60 and 8,064,796.80 is: 12,087,512.56
Step by Step Solution
- Step 1: Write the proportion equation
19,430,198.40 : 29,121,969.60 = 8,064,796.80 : x - Step 2: Convert to fraction form
19,430,198.40/29,121,969.60 = 8,064,796.80/x - Step 3: Cross multiply
19,430,198.40x = 29,121,969.60 × 8,064,796.80 - Step 4: Simplify right side
19,430,198.40x = 234,862,767,239,777.28 - Step 5: Solve for x
x = 234,862,767,239,777.28/19,430,198.40 - Step 6: Final answer
x = 12,087,512.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.