Finding the Fourth Proportional to 99,155,422.85, 136,690,268.84 and 69,293,357.92
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Solution
The fourth proportional to 99,155,422.85, 136,690,268.84 and 69,293,357.92 is: 95,524,051.54
Step by Step Solution
- Step 1: Write the proportion equation
99,155,422.85 : 136,690,268.84 = 69,293,357.92 : x - Step 2: Convert to fraction form
99,155,422.85/136,690,268.84 = 69,293,357.92/x - Step 3: Cross multiply
99,155,422.85x = 136,690,268.84 × 69,293,357.92 - Step 4: Simplify right side
99,155,422.85x = 9,471,727,722,911,144 - Step 5: Solve for x
x = 9,471,727,722,911,144/99,155,422.85 - Step 6: Final answer
x = 95,524,051.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.