Finding the Fourth Proportional to 99,643,999.20, 149,465,998.80 and 27,840,415.20
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Solution
The fourth proportional to 99,643,999.20, 149,465,998.80 and 27,840,415.20 is: 41,760,622.80
Step by Step Solution
- Step 1: Write the proportion equation
99,643,999.20 : 149,465,998.80 = 27,840,415.20 : x - Step 2: Convert to fraction form
99,643,999.20/149,465,998.80 = 27,840,415.20/x - Step 3: Cross multiply
99,643,999.20x = 149,465,998.80 × 27,840,415.20 - Step 4: Simplify right side
99,643,999.20x = 4,161,195,464,874,702 - Step 5: Solve for x
x = 4,161,195,464,874,702/99,643,999.20 - Step 6: Final answer
x = 41,760,622.80
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1.5x scale
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.