Finding the Fourth Proportional to 21,049,157.13, 29,047,837.04 and 11,391,365.13
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Solution
The fourth proportional to 21,049,157.13, 29,047,837.04 and 11,391,365.13 is: 15,720,083.99
Step by Step Solution
- Step 1: Write the proportion equation
21,049,157.13 : 29,047,837.04 = 11,391,365.13 : x - Step 2: Convert to fraction form
21,049,157.13/29,047,837.04 = 11,391,365.13/x - Step 3: Cross multiply
21,049,157.13x = 29,047,837.04 × 11,391,365.13 - Step 4: Simplify right side
21,049,157.13x = 330,894,517,959,378.44 - Step 5: Solve for x
x = 330,894,517,959,378.44/21,049,157.13 - Step 6: Final answer
x = 15,720,083.99
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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.