Finding the Fourth Proportional to 28,224,163.60, 42,336,245.40 and 16,728,125.20
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Solution
The fourth proportional to 28,224,163.60, 42,336,245.40 and 16,728,125.20 is: 25,092,187.80
Step by Step Solution
- Step 1: Write the proportion equation
28,224,163.60 : 42,336,245.40 = 16,728,125.20 : x - Step 2: Convert to fraction form
28,224,163.60/42,336,245.40 = 16,728,125.20/x - Step 3: Cross multiply
28,224,163.60x = 42,336,245.40 × 16,728,125.20 - Step 4: Simplify right side
28,224,163.60x = 708,206,013,549,124 - Step 5: Solve for x
x = 708,206,013,549,124/28,224,163.60 - Step 6: Final answer
x = 25,092,187.80
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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.