Finding the Fourth Proportional to 21,410,129.81, 29,546,011.62 and 11,620,577.59
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Solution
The fourth proportional to 21,410,129.81, 29,546,011.62 and 11,620,577.59 is: 16,036,414.70
Step by Step Solution
- Step 1: Write the proportion equation
21,410,129.81 : 29,546,011.62 = 11,620,577.59 : x - Step 2: Convert to fraction form
21,410,129.81/29,546,011.62 = 11,620,577.59/x - Step 3: Cross multiply
21,410,129.81x = 29,546,011.62 × 11,620,577.59 - Step 4: Simplify right side
21,410,129.81x = 343,341,720,431,386.56 - Step 5: Solve for x
x = 343,341,720,431,386.56/21,410,129.81 - Step 6: Final answer
x = 16,036,414.70
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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.