Finding the Fourth Proportional to 46,235,986.87, 69,348,469.11 and 12,159,989.95
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Solution
The fourth proportional to 46,235,986.87, 69,348,469.11 and 12,159,989.95 is: 18,238,535.49
Step by Step Solution
- Step 1: Write the proportion equation
46,235,986.87 : 69,348,469.11 = 12,159,989.95 : x - Step 2: Convert to fraction form
46,235,986.87/69,348,469.11 = 12,159,989.95/x - Step 3: Cross multiply
46,235,986.87x = 69,348,469.11 × 12,159,989.95 - Step 4: Simplify right side
46,235,986.87x = 843,276,687,425,485.38 - Step 5: Solve for x
x = 843,276,687,425,485.38/46,235,986.87 - Step 6: Final answer
x = 18,238,535.49
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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.