Finding the Fourth Proportional to 28,487,163.08, 39,325,909.38 and 16,261,658.12
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Solution
The fourth proportional to 28,487,163.08, 39,325,909.38 and 16,261,658.12 is: 22,448,865.54
Step by Step Solution
- Step 1: Write the proportion equation
28,487,163.08 : 39,325,909.38 = 16,261,658.12 : x - Step 2: Convert to fraction form
28,487,163.08/39,325,909.38 = 16,261,658.12/x - Step 3: Cross multiply
28,487,163.08x = 39,325,909.38 × 16,261,658.12 - Step 4: Simplify right side
28,487,163.08x = 639,504,493,595,661.12 - Step 5: Solve for x
x = 639,504,493,595,661.12/28,487,163.08 - Step 6: Final answer
x = 22,448,865.54
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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.