Finding the Fourth Proportional to 52,509,163.80, 78,763,745.70 and 52,509,163.80
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Solution
The fourth proportional to 52,509,163.80, 78,763,745.70 and 52,509,163.80 is: 78,763,745.70
Step by Step Solution
- Step 1: Write the proportion equation
52,509,163.80 : 78,763,745.70 = 52,509,163.80 : x - Step 2: Convert to fraction form
52,509,163.80/78,763,745.70 = 52,509,163.80/x - Step 3: Cross multiply
52,509,163.80x = 78,763,745.70 × 52,509,163.80 - Step 4: Simplify right side
52,509,163.80x = 4,135,818,424,462,845.50 - Step 5: Solve for x
x = 4,135,818,424,462,845.50/52,509,163.80 - Step 6: Final answer
x = 78,763,745.70
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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.