Finding the Fourth Proportional to 21,568,385.70, 32,352,578.55 and 16,749,987.30
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Solution
The fourth proportional to 21,568,385.70, 32,352,578.55 and 16,749,987.30 is: 25,124,980.95
Step by Step Solution
- Step 1: Write the proportion equation
21,568,385.70 : 32,352,578.55 = 16,749,987.30 : x - Step 2: Convert to fraction form
21,568,385.70/32,352,578.55 = 16,749,987.30/x - Step 3: Cross multiply
21,568,385.70x = 32,352,578.55 × 16,749,987.30 - Step 4: Simplify right side
21,568,385.70x = 541,905,279,834,752.44 - Step 5: Solve for x
x = 541,905,279,834,752.44/21,568,385.70 - Step 6: Final answer
x = 25,124,980.95
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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.