Finding the Fourth Proportional to 19,936,829.40, 29,905,244.10 and 11,327,485.20
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Solution
The fourth proportional to 19,936,829.40, 29,905,244.10 and 11,327,485.20 is: 16,991,227.80
Step by Step Solution
- Step 1: Write the proportion equation
19,936,829.40 : 29,905,244.10 = 11,327,485.20 : x - Step 2: Convert to fraction form
19,936,829.40/29,905,244.10 = 11,327,485.20/x - Step 3: Cross multiply
19,936,829.40x = 29,905,244.10 × 11,327,485.20 - Step 4: Simplify right side
19,936,829.40x = 338,751,209,945,137.31 - Step 5: Solve for x
x = 338,751,209,945,137.31/19,936,829.40 - Step 6: Final answer
x = 16,991,227.80
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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.