Finding the Fourth Proportional to 99,643,645.80, 149,465,468.70 and 74,134,477.80
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Solution
The fourth proportional to 99,643,645.80, 149,465,468.70 and 74,134,477.80 is: 111,201,716.70
Step by Step Solution
- Step 1: Write the proportion equation
99,643,645.80 : 149,465,468.70 = 74,134,477.80 : x - Step 2: Convert to fraction form
99,643,645.80/149,465,468.70 = 74,134,477.80/x - Step 3: Cross multiply
99,643,645.80x = 149,465,468.70 × 74,134,477.80 - Step 4: Simplify right side
99,643,645.80x = 11,080,544,471,206,744 - Step 5: Solve for x
x = 11,080,544,471,206,744/99,643,645.80 - Step 6: Final answer
x = 111,201,716.70
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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.