Finding the Fourth Proportional to 99,670,584.80, 149,505,877.20 and 69,059,583.20
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Solution
The fourth proportional to 99,670,584.80, 149,505,877.20 and 69,059,583.20 is: 103,589,374.80
Step by Step Solution
- Step 1: Write the proportion equation
99,670,584.80 : 149,505,877.20 = 69,059,583.20 : x - Step 2: Convert to fraction form
99,670,584.80/149,505,877.20 = 69,059,583.20/x - Step 3: Cross multiply
99,670,584.80x = 149,505,877.20 × 69,059,583.20 - Step 4: Simplify right side
99,670,584.80x = 10,324,813,565,382,382 - Step 5: Solve for x
x = 10,324,813,565,382,382/99,670,584.80 - Step 6: Final answer
x = 103,589,374.80
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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.