Finding the Fourth Proportional to 75,629,803.20, 113,444,704.80 and 73,950,187.20
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Solution
The fourth proportional to 75,629,803.20, 113,444,704.80 and 73,950,187.20 is: 110,925,280.80
Step by Step Solution
- Step 1: Write the proportion equation
75,629,803.20 : 113,444,704.80 = 73,950,187.20 : x - Step 2: Convert to fraction form
75,629,803.20/113,444,704.80 = 73,950,187.20/x - Step 3: Cross multiply
75,629,803.20x = 113,444,704.80 × 73,950,187.20 - Step 4: Simplify right side
75,629,803.20x = 8,389,257,156,808,739 - Step 5: Solve for x
x = 8,389,257,156,808,739/75,629,803.20 - Step 6: Final answer
x = 110,925,280.80
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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.