Finding the Fourth Proportional to 13,890,796.18, 19,165,836.27 and 8,012,227.66
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Solution
The fourth proportional to 13,890,796.18, 19,165,836.27 and 8,012,227.66 is: 11,054,877.02
Step by Step Solution
- Step 1: Write the proportion equation
13,890,796.18 : 19,165,836.27 = 8,012,227.66 : x - Step 2: Convert to fraction form
13,890,796.18/19,165,836.27 = 8,012,227.66/x - Step 3: Cross multiply
13,890,796.18x = 19,165,836.27 × 8,012,227.66 - Step 4: Simplify right side
13,890,796.18x = 153,561,043,489,525.22 - Step 5: Solve for x
x = 153,561,043,489,525.22/13,890,796.18 - Step 6: Final answer
x = 11,054,877.02
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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.