Finding the Fourth Proportional to 21,480,837.70, 29,643,554.24 and 11,691,352.08
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Solution
The fourth proportional to 21,480,837.70, 29,643,554.24 and 11,691,352.08 is: 16,134,064.90
Step by Step Solution
- Step 1: Write the proportion equation
21,480,837.70 : 29,643,554.24 = 11,691,352.08 : x - Step 2: Convert to fraction form
21,480,837.70/29,643,554.24 = 11,691,352.08/x - Step 3: Cross multiply
21,480,837.70x = 29,643,554.24 × 11,691,352.08 - Step 4: Simplify right side
21,480,837.70x = 346,573,229,557,116.75 - Step 5: Solve for x
x = 346,573,229,557,116.75/21,480,837.70 - Step 6: Final answer
x = 16,134,064.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.