Finding the Fourth Proportional to 19,998,137.80, 29,955,216.30 and 16,638,905.80
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Solution
The fourth proportional to 19,998,137.80, 29,955,216.30 and 16,638,905.80 is: 24,923,421.73
Step by Step Solution
- Step 1: Write the proportion equation
19,998,137.80 : 29,955,216.30 = 16,638,905.80 : x - Step 2: Convert to fraction form
19,998,137.80/29,955,216.30 = 16,638,905.80/x - Step 3: Cross multiply
19,998,137.80x = 29,955,216.30 × 16,638,905.80 - Step 4: Simplify right side
19,998,137.80x = 498,422,022,234,324.56 - Step 5: Solve for x
x = 498,422,022,234,324.56/19,998,137.80 - Step 6: Final answer
x = 24,923,421.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.