Finding the Fourth Proportional to 21,043,566.24, 29,040,120.96 and 11,385,774.24
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Solution
The fourth proportional to 21,043,566.24, 29,040,120.96 and 11,385,774.24 is: 15,712,368.21
Step by Step Solution
- Step 1: Write the proportion equation
21,043,566.24 : 29,040,120.96 = 11,385,774.24 : x - Step 2: Convert to fraction form
21,043,566.24/29,040,120.96 = 11,385,774.24/x - Step 3: Cross multiply
21,043,566.24x = 29,040,120.96 × 11,385,774.24 - Step 4: Simplify right side
21,043,566.24x = 330,644,261,152,852.06 - Step 5: Solve for x
x = 330,644,261,152,852.06/21,043,566.24 - Step 6: Final answer
x = 15,712,368.21
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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.