Finding the Fourth Proportional to 99,650,485.80, 149,475,728.70 and 73,822,453.20
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Solution
The fourth proportional to 99,650,485.80, 149,475,728.70 and 73,822,453.20 is: 110,733,679.80
Step by Step Solution
- Step 1: Write the proportion equation
99,650,485.80 : 149,475,728.70 = 73,822,453.20 : x - Step 2: Convert to fraction form
99,650,485.80/149,475,728.70 = 73,822,453.20/x - Step 3: Cross multiply
99,650,485.80x = 149,475,728.70 × 73,822,453.20 - Step 4: Simplify right side
99,650,485.80x = 11,034,664,986,491,646 - Step 5: Solve for x
x = 11,034,664,986,491,646/99,650,485.80 - Step 6: Final answer
x = 110,733,679.80
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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.